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I need multiple LED lights and found using LED strip a cheaper alternative. So, I'm mounting the strip in an aluminum channel (C shape)... It creates a pretty direct/narrow beam. I'd like to bend the channels out a bit so the beam isn't so narrow but have no idea how. It's tough.

If I can't bend the channel, I'll mount the strip on the back of the channel but I'm sure the light will flood, the opposite problem.
 

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I have been mounting the LED strips on the outside of the channel, and it has worked very well. I have kept the light fixture right on top of the tank, so there is very little lost light. I haven't tried using very small channels, with just one strip of LEDs inside the channel, but that should work even better. The reason I didn't try it was the difficulty of finding cheap aluminum channel in that size, about 1/2 inch channel. My source of inexpensive channels was a store that sells surplus metal, and they never had any channels that small.
 
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