Aquarium LED lamp, lid, accessory holder

by Laidukas

At the end of this project I realized that this LED lamp can be used as general purpose holder for aquarium lid, accessories, LED strips and not only my designed 12V LED circuit boards. See photos for ideas. Included few photos where I show retrofitted old lid'ed aquarium with LED circuit boards. In the aquarium with lid I used aluminum box with polycarbonate clear cover to protect boards from moisture. I chose polycarbonate instead of plexiglas because it can handle higher temperatures. In cases when LED boards are used with 3D printed arms and hang in free air I believe protection from moister will not be that critical. As soon as electric current will start running, board will get warm/hot quickly and any moister will evaporate thus eliminating possibility of corrosion. But I need to test and prove this. Added few photos of my aquatic plants that are gown with these lamps. But I'm more engineer then I'm aquascaper so please... :) Joint glass fork to glass fork M4x20mm bolt is needed + washers + nut. Joint arm to LED holder M4x35mm... Joint arm to glass fork M4x40mm... If you will solder alI LED's you will need some serious cooling because it will be 16W in small board with 10x5cm area or 8W in 5x5cm. There are two board versions, in photos you will see 10x5cm. LED's must be run below 60 degrees Celsius for maximum lifetime. You can guesstimate heatsink size with this calculator https://celsiainc.com/resources/calculators/heat-sink-size-calculator I glued heatsinks to the circuit board using "Silicone Heatsink Plaster / Thermal Adhesive Glue" which you can find at phone/laptop repair shops or buy from eBay, Amazon or Aliexpress. Heatsinks I buy from there as well. You can minimize heatsink volume by using 20x20 or 25x25 cooling fans. They can be found with 12V option and thus connected to the LED power input directly or via resistor to lower rotation speed and noise. LED circuit board manufacturing documentation is attached, upload ZIP archive file to PCB manufact