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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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The indicator light blue 16mm model (FL1M-16FA-1) by FILN is a high-performance industrial signaling solution designed for demanding environments. Featuring a metal flat head and robust 2-pin screw terminals, this IP67 waterproof LED lamp ensures industrial-grade reliability and easy installation. Certified by UL, CE, VDE, RoHS, SGS, and ISO9001, it is widely used in automation equipment, CNC machines, and electrical cabinets. With support for custom voltage (12V, 24V, 110V, 220V) and a long lifespan of 50,000 hours, it offers superior visibility and durability for global B2B procurement needs.
| Mounting Hole | 16mm (0.63 inch) |
|---|---|
| Voltage | 12-24V, 110-220V (Customizable) |
| LED Color | Blue (Also Red, Green, Yellow, White available) |
| Waterproof Rating | IP65 / IP67 |
| Operating Temperature | -40℃ to +80℃ |
| Lifespan | 50,000 Hours |
| Wiring Type | 2-Pin Screw Terminal |
| Head Style | Flat Head (Silver Housing Only) |
| Certifications | ISO9001, CE, VDE, RoHS, SGS, UL |

| Component Name | Material | Note |
|---|---|---|
| Shell (Housing) | Copper Alloy | Nickel/Chrome plated for corrosion resistance |
| Lamp Holder | PA66 Nylon | High strength, temperature resistant |
| Lampshade (Lens) | PC Polycarbonate | High light transmission, impact resistant |
| Light Source | LED | Long life, low energy consumption |
| Resistor | Carbon Film | Stable current protection |
| Terminal (Pin) | Brass | Excellent conductivity |
| Nut / Gasket | Copper Alloy / Stainless Steel | M16 Nut + Plum Gasket included |
| O-ring | Silica Gel | Provides IP67 waterproof seal |
| Rated Voltage | Customized (3V-380V support) |
|---|---|
| Frequency (AC) | 50~60Hz |
| Rated Current | ≤20mA |
| Operating Temperature | -40℃~80℃ |
|---|---|
| Relative Humidity | ≤85% at +40℃ |
| Ambient Temperature | 5~35℃ |
| Air Pressure | 86~106Kpa |
| Waterproof Rating | IP67 Industrial Grade |
| Test Item | Condition | Requirement |
|---|---|---|
| Insulation Resistance | DC500V for 1 minute | ≥100MΩ |
| Dielectric Strength | 1500VAC / 5mA / 60s | No breakdown/flashover |
| High Temperature Resistance | 80℃ for 96h |
|---|---|
| Low Temperature Resistance | -40℃ for 96h |
| Moisture Resistance | 40℃ 90-95%RH 96h |
| Temperature Cycling | -40℃ → 25℃ → 85℃ (5 rounds) |

An indicator light blue is a panel-mounted LED signaling device used to communicate the status of electrical circuits or industrial machinery. The blue color specifically is often used in industrial standards to indicate "Mandatory Action" or specific status updates. The flat head design is preferred for its sleek, low-profile appearance, which reduces the risk of the light being caught or damaged by passing objects. Unlike pin-type terminals that require soldering, screw terminal indicator lights offer a more mechanical connection, allowing for faster field installation and easier maintenance in high-vibration environments.
FILN Official Website: www.filn.com
Contact Us: inquiry@cnylin.com.cn

1. What is the difference between screw terminals and pin terminals?
Screw terminals allow for direct wire connection by tightening a screw, making them ideal for field repairs. Pin terminals usually require soldering or quick-connect female terminals.
2. Can I use this 16mm indicator light on a marine boat?
Yes, the IP67 rating ensures it is fully waterproof and dustproof, making it perfect for marine control panels.
3. Does FILN support 110V AC customization?
Absolutely. We provide internal resistors pre-configured for 12V, 24V, 110V, or 220V AC/DC inputs.
4. Why choose a flat head over a domed head?
The flat head sits nearly flush with the panel, providing a cleaner aesthetic and reducing the chance of accidental impact damage.
5. Is the metal housing resistant to rust?
The housing is made of a high-quality copper alloy with nickel plating, which offers excellent corrosion resistance in industrial settings.
6. What color options are available for the 16mm series?
While this model is blue, we also manufacture red, green, yellow, and white versions.
7. How long is the delivery time for bulk B2B orders?
As a factory, we maintain high stock levels and can typically ship standard orders within 3-7 business days.
8. Is the LED replaceable?
No, the LED is integrated and sealed for IP67 protection, but with a 50,000-hour life, it rarely needs replacement.
9. Does it come with mounting hardware?
Yes, each unit includes a waterproof O-ring and a securing hex nut.
10. Are these lights UL certified?
Yes, FILN products carry UL, CE, and RoHS certifications for global compliance.
At FILN, we specialize in delivering precision-engineered indicator lights, push button switches, and rocker switches tailored to your unique requirements. While our products default to standard voltage ranges (12-24V and 110-220V), we understand that specialized applications demand flexibility.
Need a Custom Voltage Solution? Simply inform us of your desired voltage specifications (e.g., 5V, 48V, or non-standard ranges), and our engineering team will craft a solution within 10-15 business days.
✅ Expertise You Can Trust: Over 20 years of experience in industrial-grade electronic component production.
✅ End-to-End Customization: From voltage adjustments to bespoke designs (shape, color, IP rating), we adapt to your needs.
✅ Quality Guaranteed: All custom orders undergo rigorous testing to meet CE/RoHS/IP65 standards.
✅ Scalable Support: Whether prototyping or bulk orders, we ensure seamless delivery.
Consultation: Share your technical requirements via email or our contact form.
Design & Approval: Receive 3D models or samples for confirmation.
Production & QC: Precision manufacturing with real-time updates.
Global Shipping: Trackable logistics to your doorstep.
Email: inquiry@cnylin.com.cn
As a purchasing coordinator, consistency is vital for our manufacturing line runs. We ordered a large batch of these Indicator Light Blue units for deployment on a heavy equipment status panel. The flat head design sits perfectly flush against the electrical enclosure panel. The metal housing is robust and resists torque cracking when locking down the nut. Installation is extremely easy because of the 2PIN screw terminals, no soldering required. Illumination uniformity across all 50 units we unboxed was perfect. Very satisfied with the engineering quality from the FILN factory.
The packaging box was squashed by the local courier upon arrival. Fortunately, the metal indicator lights inside are tough enough and sustained zero damage. High quality build.
Hello, thank you for your observation. Our technical data sheets and complete 3D STEP files are always hosted actively on our product pages for seamless engineering verification. We appreciate your input to improve our delivery documentation.
Perfect for control panels.
Muito fácil de instalar.
As a purchasing coordinator, consistency is vital for our manufacturing line runs. We ordered a large batch of these Indicator Light Blue units for deployment inside our factory automation cabinet. The flat head design sits perfectly flush against the electrical enclosure panel. The metal housing is robust and resists torque cracking when locking down the nut. Compared with plastic alternatives, this metal housing doesn't crack under high vibration environments. Illumination uniformity across all 50 units we unboxed was perfect. Very satisfied with the engineering quality from the FILN factory.
We integrated this 16mm Indicator Light Blue inside our factory automation cabinet. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Is it suitable for industrial use? Yes, the solid metal casing and clean thread lock up perfectly.
We integrated this 16mm Indicator Light Blue inside a server rack power distribution module. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Is it suitable for industrial use? Yes, the solid metal casing and clean thread lock up perfectly.
Good value, works perfectly.
We integrated this 16mm Indicator Light Blue inside our factory automation cabinet. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. The component is reliable and handles continuous 24V/110V loads without structural overheating.
Solid metal quality.
The packaging box was squashed by the local courier upon arrival. Fortunately, the metal indicator lights inside are tough enough and sustained zero damage. High quality build.
We apologize for any structural packaging discrepancies during international delivery. We are glad the robust metal housing fully protected your components. Our customer desk is always on standby to provide custom voltage options or replacement support.
Brillo azul excelente.
Excellent flat head aesthetic and clear blue output. However, a couple of the metal threads felt tight during manual assembly. A drop of oil solved it quickly.
Hello, thank you for your observation. Our technical data sheets and complete 3D STEP files are always hosted actively on our product pages for seamless engineering verification. We appreciate your input to improve our delivery documentation.
We integrated this 16mm Indicator Light Blue for workshop machinery power status. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Is it suitable for industrial use? Yes, the solid metal casing and clean thread lock up perfectly.
We integrated this 16mm Indicator Light Blue on our production line diagnostic interface. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. The component is reliable and handles continuous 24V/110V loads without structural overheating.
We integrated this 16mm Indicator Light Blue on our production line diagnostic interface. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. The Blue LED output provides highly crisp visual feedback without causing eye strain in darker environments.
The packaging box was squashed by the local courier upon arrival. Fortunately, the metal indicator lights inside are tough enough and sustained zero damage. High quality build.
We apologize for any structural packaging discrepancies during international delivery. We are glad the robust metal housing fully protected your components. Our customer desk is always on standby to provide custom voltage options or replacement support.
We integrated this 16mm Indicator Light Blue for a CNC milling station setup. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Compared with plastic alternatives, this metal housing doesn't crack under high vibration environments.
We integrated this 16mm Indicator Light Blue on a marine dashboard unit. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Compared with plastic alternatives, this metal housing doesn't crack under high vibration environments.
As a purchasing coordinator, consistency is vital for our manufacturing line runs. We ordered a large batch of these Indicator Light Blue units for deployment inside a server rack power distribution module. The flat head design sits perfectly flush against the electrical enclosure panel. The metal housing is robust and resists torque cracking when locking down the nut. The component is reliable and handles continuous 24V/110V loads without structural overheating. Illumination uniformity across all 50 units we unboxed was perfect. Very satisfied with the engineering quality from the FILN factory.
We integrated this 16mm Indicator Light Blue for an industrial water treatment console. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. The component is reliable and handles continuous 24V/110V loads without structural overheating.
We integrated this 16mm Indicator Light Blue on a marine dashboard unit. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Is it worth buying? Absolutely, especially if you need consistent brightness across batch panels.
Helder blauw licht.
We integrated this 16mm Indicator Light Blue in a custom backup battery system. The 2PIN screw terminal connection is extremely secure and saved our team assembly time. Installation is extremely easy because of the 2PIN screw terminals, no soldering required.
As a purchasing coordinator, consistency is vital for our manufacturing line runs. We ordered a large batch of these Indicator Light Blue units for deployment inside our factory automation cabinet. The flat head design sits perfectly flush against the electrical enclosure panel. The metal housing is robust and resists torque cracking when locking down the nut. Is it worth buying? Absolutely, especially if you need consistent brightness across batch panels. Illumination uniformity across all 50 units we unboxed was perfect. Very satisfied with the engineering quality from the FILN factory.
Good value, works perfectly.
The packaging box was squashed by the local courier upon arrival. Fortunately, the metal indicator lights inside are tough enough and sustained zero damage. High quality build.
Thank you for your valuable industrial feedback. We sincerely apologize for the logistics inconvenience. We have updated our structural export packaging and coordinate tightly with global freight teams to ensure perfect delivery timelines. Please contact sales@cnfiln.com for direct assistance.
The packaging box was squashed by the local courier upon arrival. Fortunately, the metal indicator lights inside are tough enough and sustained zero damage. High quality build.
Thank you for your valuable industrial feedback. We sincerely apologize for the logistics inconvenience. We have updated our structural export packaging and coordinate tightly with global freight teams to ensure perfect delivery timelines. Please contact sales@cnfiln.com for direct assistance.
Highly visible blue light.
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