Recent content by Tanoshimi

Spot on Rakehellion. If I could run it on 9v or AA batteries I had to replace, fine, but since all bedrooms have windows (it's a requirement) then I figured I could put some solar sensors out there and run rechargeable batteries. I have driveway lights that work that way, but I'd be...

I thought it might be cheaper to replace a 9 volt battery every 2-6 months than it would be to run 4 bulbs on the 110. Guess that's not the case, and I can't get 2-6 months off the batteries anyway!

Sorry for the confusion. The plan is (was) to use the battery powered ALL the time, not just in an outage (but certainly then), so the batteries just need to get us through one night, and then get recharged the next day. Looking to take the lights off the house's electric bill, and I saw a web...

Would that drain slower, or last longer than 9v? Or are we still looking at about 2-3 hours? And if I did hook this up to the house's grid instead, would this cost me less than 4 light bulbs in the room?

So 20 mA x 10 LED's = 200, and the battery is about 570. About 2, almost 3 hours. Not really good.

Wow, if you don't mind me asking, what was 144 LED's for? And how bright did that get? The flashlight design I saw is based upon 8 leds, so I figured less than 100 to do a room. Again, it's a small room. And I'm interested in a) having the light without affecting the electric bill. b)...

Rakehellion: Super quick response! Thanks for getting back to me. I know it can drain them pretty fast, but we're looking at about 1/10th of the LED's you had connected. Sill if that's a regular progression, then that means 50 minutes total life. still not realistic.

Well, that basically says it all. See, I have a dream of embedding an array of flashlight quality LED's running on 9 volt batteries (possibly rechargeable ones that can be recharged by a solar cell). In my research, I see that you can run 25-30 LED's on a single 9 volt (in parallel), but I...