I had a new idea....moonlights =P.
I found this on the big auction site. 45 LEDS already assembled into a strip.
The lights span about 35 inches which would be great for a 4' tank.
Color: blue
Voltage: 12V
Number of bulbs: 45 SMD LEDs
Wire length: 35cm-45cm
Strip length: 90cm
Self-adhesive back with 3M double side adhesive tape
You can cut the strip shorter if it is too long
water proof and flexible
Since the it says voltage 12v, does that mean I can just wire it to a 12v DC adapter?
I was thinking it might be too bright, but I dont know....has anyone ever used something like this?