I've put lots of heatsinks in to the unit, coz I wasn't stable to keep it on for 24 hours. I want to extend its life and make it more stable, so I put 4 heatsinks and removed the original heatsink. It's just fitted right!:D The 3mm LEDs in it looks very cool at night too! Here is the pic I took after I put heatsinks on.
http://hk.geocities.com/zacklau/DSC00039.JPG
