http://bgmicro.com/pdf/page11.pdf
Letís get serious about this infrared
thing with our IR ILLUMINATOR kit.
Kit comes with 36 high power
infrared LEDs(100mA. each), a
2" diameter PC board, 4 resistors,
and assembly notes. Approximate
assembly time is under 1 hour. IR
ILLUMINATOR is designed to operate between
12 and 13.8Vdc, with maximum efficiency at
13.2Vdc. Units can be daisy chained. At 24
feet, the beam is approximately 8 feet in diameter.
Light up the dark with the IR ILLUMINATOR
kit. 940nm/20 degree viewing angle.
$20
not bad for IR illumination