There are few high light aquarium LED lights. The reason is that if you use high power LED, you have to use radiators to cool them and also drivers to power them. I propose to assemble a high power LED lighting without radiator and drivers. The lamp is in use above my aquarium of 55 Gallons (200 liters) for about 4 months. The power is 120 Watts (40 LED of 3 Watts) . The output is 10,800 Lumens (40 LED of 270 Lumens). It is very bright and should be used in conjunction with carbon dioxide pressurized system if you do not want to end-up with an algae culture. English is not my mother tongue, so please forgive my language mistakes.
1. 30 LED bulbs MR 16 12 Volts 3 Watts, 270 Lumens, color white 6000 Kelvin angle 60° source : E-Bay
2. 10 LED bulbs MR 16 12 Volts 3 Watts, 270 Lumens, color warm white 3000 Kelvin angle 60° source : E-Bay
3 2 meter of electric plastic gutter white
4 1 Power supply 12 Volts (power supply from a personnal computer XT or AT
5 Wire 1,5 mm soft
6: Six computer 12 Volt fans (not mandatory )
7: 1 hole saw bit 48mm
8 40X GU5.3 MR16 MR11 LED bulb Wire Connector Socket
Drill holes of 48mm in the gutter. You can drill 20 holes per meter. Glue the LED lamps into the holes using cyanoacrylate glue. Connect the bulbs with the connectors.
Here below is the picture of the main plug of the PC power supply (20 Connection). You have to connect the green wire (PS_ON) to the black (COM) and use the yellow (12 VDC) and the black (COM)