Key Takeaways
Essential product highlights, technical attributes, and procurement considerations for industrial buyers evaluating the FL1M-19FW-1 pilot lamp indicator.
- Product Identity: Industrial-grade 19mm flat head metal pilot lamp indicator engineered for heavy-duty commercial and manufacturing installations.
- Key Specification: Standard 19mm mounting diameter compatible with custom operating voltages ranging from 3V to 480V AC/DC.
- Material Composition: Durable copper alloy or zinc-aluminum alloy shell paired with a high-strength PA66 lamp holder and protective PC lens.
- Protection Rating: IP67 dustproof and waterproof rating achieved via precision O-ring sealing for harsh industrial environments.
- Mounting & Assembly: Single-nut threaded panel installation ensuring secure mechanical locking against shock and continuous operational vibration.
- Wiring Configuration: 2-pin pre-wired design with standard 20cm wire leads for rapid electrical connection and installation flexibility.
- LED Characteristics: Built-in non-polar LED light source supporting Red, Green, Yellow, Blue, and White illumination options.
- Industrial Applications: Widely deployed in CNC machining centers, power distribution cabinets, EV charging stations, marine control panels, and automation machinery.
- Customization & OEM: Comprehensive factory-direct custom wire length, connector attachments, and voltage configurations supported for OEM buyers.
- Certifications: Manufactured under strict ISO9001 quality management systems with CE, VDE, RoHS, and CCC compliance.
- Procurement Support: Bulk wholesale availability with dedicated engineering support, 3D models, and comprehensive technical documentation for procurement professionals.
What is a Pilot Lamp Indicator?
A pilot lamp indicator is an essential visual signaling device installed on industrial control panels, electrical distribution enclosures, and automated machinery to communicate operational statuses, warnings, and system modes to operators. The primary function of an industrial pilot lamp indicator is to provide immediate, unambiguous visual confirmation of electrical circuit states such as power ON, standby, running, or fault conditions. Structurally, industrial indicators consist of an outer mounting shell, an internal LED luminescent assembly, current-limiting resistance components, and termination leads or pins. FILN provides an extensive range of indicator lights categorized into metal and plastic housings, spanning installation sizes from 6mm to 30mm, with terminal connection choices including pin terminals and direct wire leads. Metal pilot lamp indicators are offered in flat head, prominent head, and recessed head exterior variations to match specific functional and aesthetic requirements. Specifically, the 19mm flat head metal pilot lamp indicator delivers a streamlined profile that prevents accidental physical impact while maximizing optical visibility across industrial control environments.
Product Overview
The FILN FL1M-19FW-1 pilot lamp indicator is engineered as a robust mechanical and electrical signaling component for professional B2B applications. Mechanically, it operates via a threaded cylindrical housing secured by a rear mounting nut, exerting clamping force against a silicone O-ring to form an impenetrable environmental seal. Electrically, the internal high-efficiency LED module operates in conjunction with an integrated carbon film resistor, converting electrical energy into stable optical output while managing forward current and voltage drops. The mechanical principle relies on precision metal lathe turning and compression assembly, ensuring zero internal component shift during high-vibration operation. Industrial advantages include superior impact resistance, excellent thermal dissipation, and corrosion-resistant metal finishes that outperform standard polymer indicators. Certified to rigorous international standards, this pilot lamp indicator integrates premium materials designed for continuous, long-term operation in demanding industrial sectors.
Explore our complete catalog of durable metal signaling solutions on the metal indicator light product page. For direct procurement and detailed purchasing specifications of this specific model, visit the 19mm metal indicator light product listing.
Quick Specifications
Key technical specifications and dimensional data for the FL1M-19FW-1 pilot lamp indicator.
| Specification Parameter |
Technical Detail |
| Product Description |
Metal indicator light with wires |
| Indicator Model |
FL1M-19FW-1 |
| Mounting Hole |
19mm (0.748 inches) |
| Operating Voltage |
3V – 480V AC/DC (Customizable) |
| LED Color Options |
Red (R) / Green (G) / Yellow (Y) / Blue (B) / White (W) |
| Waterproof Rating |
IP65 / IP67 |
| Wiring Type |
2-pin wire lead type with 20cm cable |
| Head Feature |
Flat head |
| Surface Quality |
Clean, smooth finish without burrs, oxidation, or micro-cracks. |
| Assembly Standard |
Head and base assemblies securely locked; zero rotation, detachment, skew, or deformation. |
Performance Parameters
Detailed electrical, mechanical, and environmental performance metrics governing the operation of the FL1M-19FW-1 indicator.
| Performance Parameter |
Technical Specification |
| Rated Working Voltage |
3V – 480V DC/AC (Customizable per client requirement) |
| AC Frequency |
50 ~ 60 Hz |
| Rated Working Current |
≤20 mA |
| Rated Power |
Approx. 0.2W |
| Insulation Resistance |
≥100 MΩ (Tested between conductor and shell at DC 500V) |
| Dielectric Strength |
1500V ~ 1800V AC, withstanding zero breakdown or flashover. |
| Working Life |
50,000 ~ 100,000 Hours |
| Ingress Protection |
IP67 |
Component Materials
Detailed material breakdown of the FL1M-19FW-1 pilot lamp indicator, explaining engineering material selection for industrial durability.
| Accessory Name |
Material |
Engineering Purpose & Functionality |
| Shell |
Copper alloy / Zinc-aluminum alloy with black plating |
Provides mechanical rigidity, impact strength, and corrosion resistance. |
| Lamp Holder |
PA66 (Polyamide 66) |
Offers high thermal stability, electrical insulation, and flame retardancy. |
| Lampshade |
PC (Polycarbonate) |
Ensures high optical transmittance and resistance to UV yellowing and impact. |
| Luminescent Source |
High-brightness LED |
Delivers energy-efficient optical signaling with long operational lifespan. |
| Resistance |
Carbon film resistance |
Regulates current flow and voltage step-down for internal circuit stability. |
| Wireway |
PVC insulated wire |
Ensures flexible, insulated electrical transmission and secure wire leads. |
| Nut |
Copper alloy |
Provides secure thread engagement and robust mechanical panel clamping. |
| O-ring |
Silica gel (Silicone) |
Maintains elastic compression to guarantee IP67 waterproof sealing. |
| Plum Blossom Gasket |
Stainless steel |
Prevents loosening under vibration and distributes mounting tension evenly. |
Environmental Performance
Environmental tolerance specifications applicable to the FL1M-19FW-1 metal pilot lamp indicator series across rigorous operating conditions.
| Environmental Test Parameter |
Specification Standard |
| Application Range (应用范围) |
General operating range for metal indicator light series. |
| Operating & Storage Temperature |
-40℃ ~ +80℃ |
| Operating Relative Humidity |
≤85% at +40℃ |
| High Temperature Test |
96 hours at 80±2℃ |
| Low Temperature Test |
96 hours at -40±2℃ |
| Constant Temperature & Humidity Test |
96 hours at 40±2℃, 90% ~ 95% RH |
| Temperature Cycling Test |
Alternate between -40℃ (30 min) and 85℃ (30 min), 5 cycles total. |
LED Technical Specifications
Comprehensive electrical and optical parameters governing the integrated LED luminescent source.
1. Absolute Maximum Ratings
Safety limits that must not be exceeded under operating conditions:
- Peak Forward Current (IFP): 20 mA
- Reverse Voltage (VR): 5 V
- Power Dissipation (PD): 60 mW
- Operating Temperature (TOPR): -40°C ~ +80°C
- Storage Temperature (TSTG): -40°C ~ +100°C
- Lead Soldering Temperature (TSOL): Max. 260°C for 3 sec Max.
2. Electro-Optical Characteristics
Tested under ambient temperature Ta = 25℃:
| Parameter |
Test Condition |
Value Range / Typical |
| Forward Voltage (VF) |
IF = 20mA |
2.8V (Min.) ~ 3.2V (Max.) |
| Reverse Current (IR) |
VR = 5V |
5 μA (Max.) |
| Viewing Angle (2θ₁/₂) |
IF = 20mA |
60° (Typical) |
| Luminous Intensity |
IF = 20mA |
500 mcd (Min.) ~ 800 mcd (Max.) |
| Recommended Working Current (IF) |
— |
20 mA (Typical) |
| Dominant Wavelength (Color) |
IF = 20mA |
520 nm ~ 525 nm (for Green variant) |
| Junction Temperature (Tj) |
IF = 20mA |
125℃ (Max.) |
| Thermal Resistance (RJP) |
IF = 20mA |
8 ℃/W (Typical) |
Standard Test Conditions
Unless otherwise specified, all electrical and optical parameters are measured under standard atmospheric conditions:
- Ambient Temperature: 5℃ ~ 35℃
- Relative Humidity: 45% ~ 85%
- Air Pressure: 86 ~ 106 kPa (860 ~ 1060 mbar)
Notes: Luminous intensity and dominant wavelength are calibrated in accordance with the CIE international standard of human eye response curve. Measurement tolerances: luminous intensity ±15%, voltage measurement ±0.1V.
Applications by Industry
Metal pilot lamp indicators utilize high-strength copper alloy or stainless steel metal shells, offering outstanding impact resistance and IP67 dustproof and waterproof ratings for industrial and high-end commercial deployment. While plastic indicators age, crack, and deform under high temperatures over time, metal indicator lights adapt seamlessly to harsh working conditions, frequent operation, and high-reliability environments.
1. Industrial Automation and Machinery Manufacturing
This sector represents the largest and most critical application domain for metal pilot lamps, operating in workshops characterized by continuous mechanical vibration, oil contamination, and physical impact.
- CNC Machine Tools & Machining Centers: Control panels feature red, yellow, and green metal pilot lamps where green signifies normal operation, yellow denotes standby/warning, and red indicates emergency stop or system fault. Metal housings resist cutting fluids and metallic debris corrosion.
- Automation Production Line Control Cabinets: Large power distribution and PLC control cabinets integrate 16mm and 19mm metal indicator lights compatible with AC220V and DC24V power supplies to display power circuit statuses clearly.
- Hydraulic & Pneumatic Equipment: Deployed for oil pump start/stop and pressure overload warnings. Under high-vibration amplitudes, integrated pre-wired metal indicators secure internal LED and resistor components firmly against wire breakage or loosening compared to pin-type fixtures.
2. Outdoor Power and Renewable Energy Distribution Systems
Outdoor equipment subjected to intense sunlight, precipitation, and extreme temperature differentials demands rigorous weather resistance.
- Electric Vehicle Charging Stations: Outdoor DC and AC charging piles are equipped with flat head metal status indicator lights. Flashing blue or green indicates charging in progress, steady illumination signifies completion, and flashing red alerts to ground faults. IP67 waterproof and vandalism-resistant construction withstands public high-frequency use.
- Outdoor Distribution Boxes & PV Combiner Boxes: Photovoltaic power stations and municipal outdoor distribution boxes utilize indicators to display high-voltage closing and inverter running states, operating reliably across -40℃ to 80℃ thermal extremes.
3. Rail Transit, Commercial Vehicles, and Marine Equipment
Vehicles and vessels experience severe jolting and vibration alongside high salinity maritime corrosive environments.
- Commercial Vehicle Control Consoles: Excavators, cranes, and bulldozers utilize instrument dashboard indicators for oil pressure, coolant temperature, headlights, and braking fault alerts, withstanding dust and heavy mechanical shock.
- Marine & Port Control Equipment: Ship cabin instruments and deck control boxes employ electroplated stainless steel metal indicators to resist saltwater corrosion, assisted by silicone sealing rings preventing seawater ingress.
4. Commercial Vending Devices and Public Security Infrastructure
Public equipment is prone to physical impact and vandalism, making plastic fixtures highly vulnerable to fracture.
- Vending & Ticketing Kiosks: Paired with vandal-resistant metal pushbuttons to indicate coin insertion, dispensing, and change statuses.
- Gas Station Dispenser Panels: Hazardous explosive atmospheres require electrical isolation, which metal indicator shells achieve effectively to enhance operational safety.
- Residential Access Control & Intercoms: Stainless steel access panels feature red and green indicator lamps to distinguish door lock open/closed states.
5. Medical Equipment and Food Processing Machinery
Industries requiring frequent washdowns and chemical disinfection demand stringent cleanliness and moisture resistance.
- Food Filling & Packaging Machinery: Subjected daily to high-pressure hot water and chemical washdowns. IP67 metal indicator lights withstand water spray jets without internal component degradation.
- Medical Sterilization Equipment & Test Benches: High-temperature and pressure sterilization units use indicator lamps to differentiate heating, sterilization, and exhaust phases.
LED Indicator Color Meanings and Application Guide
Standardized optical color selection is critical for intuitive operator response in industrial control systems. FILN offers single-color, dual-color, and tri-color indicator configurations.
Color Breakdown
- Red: Commonly signifies danger, emergency stop, fault condition, or abnormal pressure. Typical use: Emergency shutdown systems, over-temperature alarms.
- Green: Signifies normal operation, safe status, system running, or power ON confirmation. Typical use: Main power active, motor running.
- Yellow / Amber: Indicates caution, standby mode, warning state, or pre-operational checks. Typical use: Machine warming up, low fuel warning.
- Blue: Indicates mandatory action, specific machine state, or auxiliary power confirmation. Typical use: EV charging in progress, cooling cycle active.
- White: Serves as a neutral status indicator, general illumination confirmation, or system power active indicator. Typical use: Control cabinet main power supply.
| Color |
Common Meaning |
Typical Status |
Typical Application |
Recommended Environment |
| Red |
Danger / Stop |
Fault / E-Stop |
Emergency Shutdown |
Industrial Control Panels |
| Green |
Safe / Normal |
Running Active |
Power ON Indication |
Machinery Dashboards |
| Yellow |
Caution / Standby |
Warning / Idle |
Temperature Warning |
Automation Enclosures |
| Blue |
Action / Status |
Processing |
EV Charging Stations |
Outdoor Equipment |
| White |
Neutral / Power |
Supply Active |
Main Busbar Status |
Electrical Switchboards |
Note: Indicator light color conventions can vary by equipment manufacturer, control system design, industry standard, and regional requirements. Confirm specifications prior to final assembly.
Installation Guide
Follow these technical instructions for proper mechanical mounting of the 19mm metal pilot lamp indicator.
- Panel Preparation: Drill or punch a precise 19mm circular mounting hole into the control panel surface, ensuring the edges are deburred and clean.
- Gasket Placement: Slide the silicone waterproof O-ring onto the indicator body to ensure environmental sealing against the panel face.
- Insertion: Insert the metal indicator light assembly through the front of the panel opening.
- Rear Securing: Thread the metal locking nut onto the rear housing barrel and tighten securely against the panel backside, incorporating the stainless steel plum blossom gasket to prevent vibrational loosening.
- Electrical Connection: Connect the 20cm pre-wired leads to the control circuit using appropriate terminal blocks or insulated connectors.
Wiring Guide
Understanding proper electrical termination methods ensures long-term operational stability and safety in industrial control panels.
Pin Type vs. Wire Lead Type
Pin-type indicators feature exposed solder lugs or blade terminals requiring individual wire soldering or insulated receptacle slip-on connectors. Conversely, direct pre-wired indicator types (such as the FL1M-19FW-1 featuring 20cm attached leads) eliminate internal terminal strain and accelerate installation.
Wiring Best Practices
Directly wired indicator leads can be connected securely using quick-link terminal blocks, soldered joints enclosed in heat-shrink tubing, or professional electrical tape wrapping to guarantee connection stability. The integrated non-polar LED design allows flexible DC/AC connection without strict polarity matching. Important Safety Warning: Always disconnect main power sources and verify zero voltage using calibrated multimeters before performing any electrical wiring.
Pin vs. Wire Terminal Comparison
| Connection Type |
Advantages |
Typical Application |
| Pin Terminal (e.g., FL1M-16FJ-1) |
Modular disconnection, easy harness replacement. |
Serviceable control boxes, plug-and-play modules. |
| Pre-Wired Lead (e.g., FL1M-19FW-1) |
Superior vibration resistance, built-in moisture protection. |
High-vibration machinery, outdoor panels. |
Recommended alternative pin-type model: Explore the 16mm pin-type flat head indicator FL1M-16FJ-1.
Industry Knowledge Center
Technical reference guides and engineering principles for selecting and maintaining industrial indicator lamps.
How LED Indicator Technology Operates
Solid-state LED indicator lights utilize semiconductor diodes that emit incoherent narrow-spectrum light when forward-biased. Unlike traditional incandescent pilot lamps prone to filament rupture under mechanical shock, LEDs offer solid-state vibration resistance, lower power consumption (approx. 0.2W), and exceptional operational lifespans exceeding 50,000 hours.
Maintenance and Troubleshooting Guide
If an indicator lamp fails to illuminate, first verify input voltage across the wire leads using a multimeter. Ensure that control circuit leakage currents do not cause phantom illumination (faint glowing). For outdoor installations, inspect the silicone O-ring seal periodically to maintain IP67 moisture protection integrity.
Buyer Decision Guide & RFQ Checklist
Selecting the correct metal pilot lamp indicator involves evaluating physical dimensions, electrical ratings, and environmental exposure requirements.
Specification-to-Decision Framework
- Mounting Hole (19mm): Determines physical panel compatibility. Ensure panel punch dimensions match the required cutout.
- Voltage (3V–480V): Determines electrical compatibility. Select matching AC/DC voltage ratings to prevent under-illumination or component burnout.
- IP Rating (IP67): Determines environmental suitability against dust and water immersion.
- Material Selection: FILN offers nickel-plated brass, stainless steel, and zinc-aluminum alloy options suited for varying corrosion and structural requirements.
| Material Option |
Advantages |
Limitations |
Recommended Environment |
| Nickel-Plated Brass |
Cost-effective, robust mechanical strength. |
Moderate corrosion resistance in saline conditions. |
Standard industrial machinery, indoor panels. |
| Stainless Steel |
Superior corrosion and chemical resistance. |
Higher raw material cost. |
Marine, medical, food processing equipment. |
| Zinc-Aluminum Alloy |
Lightweight, excellent die-casting finish. |
Lower tensile strength than stainless steel. |
Commercial appliances, control boxes. |
RFQ Checklist for Procurement Managers
Providing these specifications helps FILN engineering and sales teams confirm product compatibility and quotation requirements efficiently:
- Product Type & Model (FL1M-19FW-1)
- Mounting Hole Size (19mm)
- Operating Voltage & Type (AC/DC specification)
- LED Color (Red, Green, Yellow, Blue, White)
- Wiring Method & Wire Length (Standard 20cm or custom)
- Waterproof Requirement (IP67)
- Quantity & Target Delivery Date
Recommended Similar Products (Alternative Sizes)
FILN Manufacturing and Engineering Capabilities
FILN provides comprehensive OEM and ODM manufacturing capabilities, supporting electrical engineers and B2B procurement managers with custom design, rapid prototyping, and rigorous quality control. Backed by dedicated R&D engineering teams, in-house electrical testing laboratories, and flexible small-batch or mass-production capacities, FILN ensures reliable component supply for global industrial markets.
Factory Direct Supply
Factory Introduction: Yueqing Yulin Electronic Co., Ltd, brand name FILN, located in Wenzhou, Zhejiang, was established in 2006 as a professional electrical switch manufacturer integrating R&D, production, and sales. Its premium FILN brand products are sold in over 100 countries. FILN operates a modern 10,000 m² facility with 20+ advanced production lines and an independent testing lab. Driven by scientific processes and the ISO9001 quality system, FILN ensures industry-leading innovation and electrical performance. Our certified products (UL, CE, RoHS, REACH, TUV, CB) are widely used in kitchen appliances, energy storage, EV charging, automotive, marine, and security systems.
Production Capabilities: Indicator lights, pushbutton switches, rocker switches, toggle switches, and other small electrical components with complete custom manufacturing support.
Quality System: Certified under ISO9001, CE, VDE, RoHS, SGS, UL, IP65/IP67, and TUV standards.
Export Markets: Global distribution across North America, Europe, Asia, and Oceania.
Manufacturing Advantages: Professional engineers providing tailored technical solutions to resolve complex application challenges.
Official Website: www.filn.com
Direct Inquiry Email: inquiry@cnylin.com.cn
Frequently Asked Questions
1. How to prevent phantom illumination (faint glowing) in 12v LED indicators?
Phantom illumination occurs when residual leakage current from solid-state PLC outputs or long cable capacitance charges the LED circuit. This can be resolved by installing a suitably rated bleeder resistor in parallel across the indicator input terminals to shunt leakage current safely away from the LED diode.
2. Can this IP67 indicator light be washed down with caustic chemicals?
Yes, the stainless steel and copper alloy shell options combined with the silicone O-ring seal provide robust resistance against standard industrial washdown cleaning agents. However, highly concentrated acidic or caustic chemicals should be tested for compatibility with the specific metal plating finish before routine exposure.
3. What is the standard wire length for the FL1M-19FW-1 pilot lamp indicator?
The standard pre-wired lead length supplied with the indicator is 20cm. FILN also supports customized wire lengths, specialized gauge sizes, and pre-attached connector terminals upon request for bulk OEM orders.
4. Are FILN metal pilot lamp indicators polarity-sensitive?
No, standard DC/AC LED indicators manufactured by FILN utilize non-polar internal bridge rectification circuitry for DC versions or bi-directional configurations, allowing connection without strict regard to positive and negative polarity.
5. What panel thickness is compatible with the 19mm mounting design?
The threaded barrel and mounting nut assembly accommodate standard control panel thicknesses ranging from 1mm up to 6mm. Custom extended thread lengths are available upon request for thicker enclosure walls.
6. What certifications do FILN metal indicator lights carry?
FILN indicator lamps comply with major international quality and safety standards, holding CE, VDE, RoHS, ISO9001, and CCC certifications depending on the specific model configuration.
7. How do I request custom laser engraving on the indicator head?
OEM buyers can request custom symbols, voltage markings, or company logos laser-etched onto the metal indicator head by contacting the FILN engineering team with vector artwork during the RFQ process.
8. What is the minimum order quantity for custom voltage pilot lamps?
While FILN maintains standard stock for common voltages (e.g., 12V, 24V, 220V), custom voltage production runs (such as 380V or 480V) are accommodated with flexible minimum order quantities. Contact inquiry@cnylin.com.cn for specific batch details.
9. How does metal housing compare to plastic in high-temperature environments?
Metal housings (copper alloy or stainless steel) maintain structural rigidity and prevent thermal deformation under continuous high-temperature operating conditions up to 80℃, whereas standard plastics can experience embrittlement and softening over time.
10. How can I obtain 3D CAD models for control panel layout design?
Electrical engineers and system integrators can request step files and 2D dimensional drawings by emailing our technical sales team at inquiry@cnylin.com.cn or visiting www.filn.com.
