LED experience for under $2

[intarsiabox]

I've been leary of LED's since last year when I went into one of the local SW stores to see the new LED fixture they had on display over their main display tank. After about 30 seconds I started getting a bad headache from it and the lights produced a grid effect all over the tank. I don't know if this is typical and I wish I could remember which brand it was so I could avoid it. It wasn't a cheap set up either. My LED flashlight actually looks better this fixture did.