$160.00

A 1500 lumen subsea LED light with servo signal control, daisy-chain connection for multiple lights, and smart over-temp protection.

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SKU: BR-100857
HS Code: 9405.40.6000

Product Description

The Lumen Subsea Light is a blindingly bright LED light for use on ROVs, AUVs, and other subsea lighting applications. We designed this underwater light specifically for this purpose and it has a few neat features:

  • Fully dimmable control using a PWM servo signal (1100-1900 μs)
  • Simple on/off control with no signal needed
  • Daisy-chainable to connect multiple lights from a single connection
  • Automatic, smart over-temperature compensation for maximum light output and safety in air
  • Built-in mounting holes on the side of the case (M3 thread)
  • Exponential brightness control with much lower minimum brightness output
  • 500m depth rating

Using a high-efficiency Cree XLamp LED, the light outputs over 1500 lumens at 15 Watts – brighter than most car headlights! It has a 135 degree beam angle for wide illumination in front of an ROV. The color temperature is 5700K, similar to most dive lights and ROV lights.

In addition to really high brightness, the Lumen is designed for very low brightness output, which is important to be able to illuminate the scene without washing out the colors or brightness. An exponential brightness curve makes it intuitive to use effectively.

It’s housed in a rugged hard-anodized aluminum enclosure with two cable penetrators at the rear, allowing it to go to a depth of 500m. By default, the second cable penetrator is blank, but the light comes with a second penetrator to allow a second light to be connected to the first (daisy-chaining). That means you only need one cable coming from the main watertight enclosure to control multiple lights!

The specially designed injection molded acrylic lens ensures a consistent beam angle in both air and water. The case has a built-in mounting bracket with two M3 threaded holes for mounting to your vehicle.

For those who want to use the light in other applications, like scuba diving, the light can be operated without a PWM signal. Just connect the yellow signal wire to the power wire and it will turn on! A switch can be used here to make this even more convenient.

The light operates on 10-48V inputs and can accept PWM signals from 3-48V! It is compatible with many common boards like the Arduino, Raspberry Pi, and PixHawk. The case warms up to a comfortable 55°C (131°F) when operated in air and stays much cooler in water.

We recommend that you don’t look directly into this light to avoid any damage to your eyes!

Product Description

The Lumen Subsea Light is a blindingly bright LED light for use on ROVs, AUVs, and other subsea lighting applications. We designed this underwater light specifically for this purpose and it has a few neat features:

  • Fully dimmable control using a PWM servo signal (1100-1900 μs)
  • Simple on/off control with no signal needed
  • Daisy-chainable to connect multiple lights from a single connection
  • Automatic, smart over-temperature compensation for maximum light output and safety in air
  • Built-in mounting holes on the side of the case (M3 thread)
  • Exponential brightness control with much lower minimum brightness output
  • 500m depth rating

Using a high-efficiency Cree XLamp LED, the light outputs over 1500 lumens at 15 Watts – brighter than most car headlights! It has a 135 degree beam angle for wide illumination in front of an ROV. The color temperature is 5700K, similar to most dive lights and ROV lights.

In addition to really high brightness, the Lumen is designed for very low brightness output, which is important to be able to illuminate the scene without washing out the colors or brightness. An exponential brightness curve makes it intuitive to use effectively.

It’s housed in a rugged hard-anodized aluminum enclosure with two cable penetrators at the rear, allowing it to go to a depth of 500m. By default, the second cable penetrator is blank, but the light comes with a second penetrator to allow a second light to be connected to the first (daisy-chaining). That means you only need one cable coming from the main watertight enclosure to control multiple lights!

The specially designed injection molded acrylic lens ensures a consistent beam angle in both air and water. The case has a built-in mounting bracket with two M3 threaded holes for mounting to your vehicle.

For those who want to use the light in other applications, like scuba diving, the light can be operated without a PWM signal. Just connect the yellow signal wire to the power wire and it will turn on! A switch can be used here to make this even more convenient.

The light operates on 10-48V inputs and can accept PWM signals from 3-48V! It is compatible with many common boards like the Arduino, Raspberry Pi, and PixHawk. The case warms up to a comfortable 55°C (131°F) when operated in air and stays much cooler in water.

We recommend that you don’t look directly into this light to avoid any damage to your eyes!
  • 1 x Lumen Subsea Light with cable penetrator
  • 1 x Cable bulkhead nut
  • 1 x Cable bulkhead O-ring
  • 2 x M3x12 mounting screws

Specifications

ParameterValue
Electrical
Supply Voltage (Vin)7–48 V
Full Brightness Supply Voltage (Vin)10–48 V
PWM Logic Voltage3–48 V
Peak Current(15/Vin)  A
Light
Maximum Brightness1,500 lumens
Color Temperature5,700 kelvin
Beam Angle135 degrees in water
Cable
Cable UsedBR-101050
Cable Length0.7 m27.5 in
Conductor Gauge22 AWG
WiresBlack - Ground
Red - Power
Yellow - Signal
Installed Penetrators
Device SideWLP-M06-4.5MM-LC
Cable EndWLP-M10-4.5MM-LC
Physical
Pressure Rating500 m1640 ft
Overall Length78.4 mm3.09 in
Overall Diameter37 mm1.46 in
Bracket Mounting Hole Spacing19 mm0.75 in
Bracket Screw SizeM3
Weight in Air (per light)118 g4.16 oz
Weight in Water (per light)50 g1.76 oz
Maximum Temperature when Run in Air55° C130° F
Internals
Face-Seal O-RingAS568-019 Buna-N 70A
Radial Seal O-RingAS568-021 Buna-N 70A
Insertion Tool for Insulation Displacement Connectors Kyocera AVX - 067000773001000 - Hand Tool (Digi-Key)
Kyocera AVX - 069176701602000 - Tool Bit (Digi-Key)

2D Drawings

 Drawing

3D Models

LUMEN-LIGHT-R3-PUBLIC (.zip)

Documents

Lumen Schematic (.pdf)

XLamp - XHP70B-00-0000-0D0BP20E2 (Cree - current)

XLamp - MKRAWT-00-0000-0B00H4051 (Cree - previous)

Revision History

29 June 2023

  • LUMEN-LIGHT-R4-RP SKU changed to BR-100857

15 February 2023

  • Serial number laser marking implemented

2 February 2022

  • Temporary change due to LED availability issues
  • LED changed from MK-R to XHP series

6 January 2022

  • R4 - Initial Release
  • Changed lens design for improved reliability

13 September 2021

  • R3 - Initial Release
  • Updated pre-installed penetrator to WetLink Penetrator
  • WetLink Penetrator comes pre-installed at cable end
  • Spade connectors pre-installed on power and ground wires at cable end
  • Female header pin pre-installed on signal wire at cable end

16 December 2019

  • Depth rating decreased from 950m to 500m based on follow-on pressure testing

10 July 2018

  • R2 - Initial release
  • Switched to anodized aluminum screws to prevent galvanic corrosion
  • Added built in mounting holes
  • Added an additional O-ring to the main enclosure
  • Redesigned the cable penetrators
  • Slightly increased body diameter
  • Increased depth rating
  • Switched to a thicker cable jacket less susceptible to nicks or holes
  • Widened brightness range to support lower light levels
  • Changed to exponential brightness curve for better dim light control

Quick Start (on/off with no PWM signal source)

1. Connect the power wires to a power source.

  • Red: +10-48 volts
  • Black: Ground
2. Connect the yellow signal wire to the power wire directly or through a switch to turn on to full brightness.

Quick Start (dimming with PWM signal)

1. Connect the signal wire to the appropriate microcontroller pin

  • Yellow: PWM (3-48 volts)
2. Connect the power wires to a power source
  • Red: +10-48 volts
  • Black: Ground
3. Provide a servo PWM pulse from 1100 μs (off) to 1900 μs (brightest)

Guides

Lumen Light Installation and Example Code
Learn how to mount a Lumen light on your custom frame!

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