Quote Originally Posted by Flyback View Post
..yes I believe you mentioned these in a previous post,-you kindly commented that they comprise series parallel leds, and there is no limiting resistor in the series chains.
We have one at work, though I haven't been able to examine it.
If it's anything like these ones, there's LOAD'S of screws to take out to get them to pieces - basically there's an L shaped cast aluminium frame, the diffuser drops in that - but isn't square, it's shorter in one direction to allow space for the LED assemblies. The LED assemblies simply drop in place at either end of the diffuser, then there's a simple aluminium plate that screws on top (LOT's of self tappers in to the frame) and sandwiches it all together.
I suppose the leds must be angled downward into the diffusor somehow?....it is a very nice looking light, but I bet theres a lot of light power loss in that diffusor.
No the LED's are mounted on thin ceramic substrates and point directly into the edge of the plastic diffuser, the top of which is covered by an aluminium plate, so all the light comes out of the bottom of the diffuser. I find diffuser technology VERY impressive, both in this case, and in LCD TV's, where the evenness of the light amazes me.