Lights

Lumen Subsea Light for ROV/AUV

A 1500 lumen subsea LED light with servo signal control, daisy-chain connection for multiple lights, smart over-temp protection, and a 300m depth rating.

The Lumen subsea light is a blindingly bright LED light for use on ROVs, AUVs, and other subsea applications. We designed this 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

Using a high-efficiency Cree XLamp MK-R 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 6200K, similar to most dive lights and ROV lights.

It’s housed in a rugged hard-anodized aluminum enclosure with an acrylic end-cap and two cable penetrators at the rear, allowing it to go to depths of 300m. 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. Here’s a good explanation of why the dome lens shape is important underwater! An extruded aluminum mounting bracket allows the light to be mounted anywhere. It holds the light with an O-ring (like many bike lights) and has both threaded and through-hole mounting holes.

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.

The electrical schematic, board layout, and Arduino-based firmware are open-source and the design files are available below. Feel free to adapt for your own needs.

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

Contents

  • 1 x Lumen Subsea Light
  • 1 x Lumen Mounting Bracket
  • 1 x O-ring for Mounting Bracket
  • 1 x Lumen Cable Penetrator for 4mm Cable
  • 1 x O-ring for Cable Penetrator

Subsea LED Indicator

This Subsea LED Indicator light comes in four colors and provides a high pressure on/off or status indicator light.

The Subsea LED Indicator is a simple LED light with high pressure capability! It comes in a penetrator form factor for easy installation on any of our Watertight Enclosures and it comes in four colors: white, blue, green, and red! It operates on 3-20v and each light draws up to 30mA when used at 20v. A built in resistor makes it easy to use without any additional parts.

The indicator light body is made of red anodized aluminum. An plastic diffuser cap on the front creates a gentle glow and makes the light visible from any angle.

The Subsea LED Indicator can be used to provide status information about anything built into a watertight enclosure. Here are a few examples:

  • Use it as a power on/off indicator on the BlueROV2 or other device (especially when using aluminum tubes)
  • Install a few different colors on an underwater sensor enclosure to show status or errors
  • Use it as a waterproof indicator light on an unmanned surface vessel
  • Create an underwater light display!

The indicator has been tested to 300m water depth and we’re still working to provide an official depth rating. It comes with two male header pins (0.1″) preinstalled to make it easy to connect to an Arduino or other electronic device.

Contents

  • 1 x Subsea LED Indicator (white, red, green, blue)
  • 1 x O-ring (013)
  • 1 x Nut

Lumen Subsea Light (Pre-Connected Sets)

These are pre-connected (daisy-chained) sets of LumenSubsea Lights, making easy to install two or four lights with a single penetrator to the watertight enclosure. All lights will respond to a single signal.

The Lumen subsea light is a blindingly bright LED light for use on ROVs, AUVs, and other subsea applications. We designed this 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

Using a high-efficiency Cree XLamp MK-R 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 6200K, similar to most dive lights and ROV lights.

It’s housed in a rugged hard-anodized aluminum enclosure with an acrylic end-cap and two cable penetrators at the rear, allowing it to go to depths of 300m. 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!

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.

The electrical schematic, board layout, and Arduino-based firmware are open-source and the design files are available below. Feel free to adapt for your own needs.

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

Contents

  • 1 x Lumen Subsea Light Set, pre-connected with 2 or 4 lights
  • 2-4 x Lumen Mounting Bracket
  • 2-4 x O-ring for Mounting Bracket
  • 1 x Nut for Pre-installed Cable Penetrator
  • 1 x O-ring for Pre-installed Cable Penetrator

 

 

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