The variable power supply they plug into, though: ... Or a salvaged fresnel lens out of an old overhead projector for more POWA ... The wire on that RCA plug looks much smaller than the 12ga I ...

Imagine perpetual power to your cellphone, MP3 player, digital camera, pocket camcorder or other low-power portable. No more battery recharging, never again having to plug your iPhone, iPod, Flip ...

I agree Dax, but that LED is being operated at > 1 W. The LED is connected directly to the power supply. A 1 W LED is usually specified for 350 mA operation at Vf (~3.2 volts).