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View Full Version : Discussion Solar power night lights

dusty IV
Jun 02, 2009, 10:16 PM
I bought a set of 10 Solar powered night lights for the yard. For $25 they are amazing. $2.50 each.

I didn't open one up but I'm curious. How do they turn off the LED during daylight and turn the LED on at night time? Must be a very cheap device to do this for the price . The LED uses a AAA rechargeable battery.
Tomapowa
Jun 02, 2009, 10:41 PM
I bought a set of 10 Solar powered night lights for the yard. For $25 they are amazing. $2.50 each.

I didn't open one up but I'm curious. How do they turn off the LED during daylight and turn the LED on at night time? Must be a very cheap device to do this for the price . The LED uses a AAA rechargeable battery.

gotta love google:
http://talkingelectronics.com/projects/SolarLight/SolarLight.html

http://www.anybodyburns.com/pathlight/flow.htm

http://www.members.shaw.ca/novotill/SolarGardenLight/index.htm
Slider2732
Jun 02, 2009, 11:14 PM
Yep, that top link is where I went for the similar thing. I put a joule thief and solar circuit on a micro arcade machine (hand built versions similar to wayoftherodent.com paper models). Fitted the 2 solar panels to the back door of the Galaxian cab and now in the day the marquee LED is off, comes on at night.