I needed some lights that are fairly bright and also efficient. LEDs are exactly that, and I found some at Spark Fun Electronics
. I used two 3 watt LEDs, and to be honest, they are blinding. They do get a bit toasty, so be sure to use a heat sink to prolong the life of the LED. Spark Fun sells an aluminum breakout board that has solder spots for wire and also acts as a heat sink. They have different LED colors too.
I attached the LEDs to a stand I made out of an L bracket to hold the in the center of the viewport. to make it easier to change, I bolted them to a aluminum strip so that they an be adjusted or replaced
The pictures do not show how bright these things really are. After looking for a second at one, I had spots in my vision