I'm so excited to share my latest work: a 65W open-source WiFi-controlled LED aquarium light prototype for reef tanks, powered by my ESP32-C3 based LED controller.

Beautiful, isn't it?

Here is the enclosure:

The white aluminum PCB is the main power board, which includes six sets of LED constant-current driver circuits, a simple current detection circuit, and the LED chips themselves. This part is flexible and can be arranged in any layout. The aluminum PCB design shown in the sample picture hasn’t been open-sourced yet. I’ll open-source it once testing and fixes are complete, I don’t want anyone making the world better before I do :)

I chose a dual-chip packaged 5W model. The current prototype has a constant-current drive set to 1.2A per channel, with an actual power output of up to 64W. For the next iteration, I plan to reduce the current a bit to better extend the LED lifespan. 

The number and wavelengths of the LEDs are as follows:

• 1 x red, 620-630nm
• 1 x green, 520~530nm
• 1 x purple, 410~420nm
• 3 x cold white 10000k
• 3 x royal blue 440nm~450nm
• 1 x UV 390nm
• 3 × blue, 465nm~475nm

I use LED chips from a Chinese manufacturer, which I’ve been buying from for years for DIY projects. I have DIY creations that have been running stably for over 5 years.

I use the most advanced common-anode constant-current driver to avoid the thermal runaway and burnout issues that most hobbyists face with constant-voltage drivers. Combined with a fuse, software-controlled temperature fan, and real-time current detection, I can confidently say this is one of the most advanced and safest in the world.

The acrylic panel for this light hasn’t arrived yet. Once it does, I’ll upload more pictures of the product’s appearance.

TO BE CONTINUED...