This is the final revision of the Ultrasimple Emergency lighting Circuit. An outboard trickle circuit is applied to the battery and can be solar, line voltage, or wind power. This leaves open different charging options. @ a draw of 6 watts or .5 amps on 12 volt battery ...10 of the led lamps will pull 5 amps from your battery. The latest switch version is to have both S1 & S2 in a single switch to disable the photo eye and turn on the lights for testing or temporary use to light your rooms. The smaller 20 AH battery will keep a single lamp running for 20 hours down to the 50% discharge level. And a deep cycle marine battery of 150 amp hours will keep your 10 lamps going 7 hours to 50% discharge of the battery. Have fun......W2BTC
Other Sizes: Medium Original