The Open Task Light 2 is an open-source, high-quality desk lamp with tunable color temperature and high-resolution dimming.

This is my version of an awesome project started by Steven Bennett. It was formerly called the DIYson.

I am calling my version the Open Task Light 2 because it is an iteration on his design and has a 2-channel LED driver for tunable LED color temperature.

Features

• High quality light output
  • LED Bridgelux BXRV-TR-2750G-20A0-A-23
    • Color Temperature: 2700K - 5000K
    • CRI (Color Rendering Index): 90
  • Very bright, up to 2,000 lumens
  • High resolution dimming
• Circadian lighting — automatically adjusts color temperature throughout the day (warm at night, cool during the day) to support your natural sleep cycle

Make your own! IN PROGRESS

Parts List

PCBs

Custom Mechanical Parts

Assembly

Firmware

The firmware runs on an ESP32 and is available on GitHub:

Code https://github.com/hornej/open-task-light

Project logs

Finalizing the LED Driver PCB

Deciding on the LED Lens

LED Mount Finalization

Testing Input Protection