The driver for the fluorescent light in my small aquarium has died, I had some old luxeons sitting around, I found some aluminium left from an old antenna project and this is the result 4 X luxeons running at 320 mA. The power supply is AC so I added a bridge rectifier and two diodes in series to drop the voltage and therefore the current to 320 mA. Everything seems to run just warm. You can see I used the original fluorescent contacts by making an insulator from some fibreglass strip.
You can see in the second picture I added another piece of aluminium at right angles to the first to increase heat sink area, glued with AA.
You can see in the second picture I added another piece of aluminium at right angles to the first to increase heat sink area, glued with AA.
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