Battery-Powered LED: Feasible Solution for 3x3x3 Box?

[johnflynn]

I have a 3x3x3 foot box that I want to light up in a place that does not have access to electricity. The box will ideally be as well lit as a regular room in the evening with red, green or blue light. We anticipate using the box 4 hours a day for 7 days.

Given these parameters I am trying to find the most efficient light and power source for the project. I cannot afford a generator which might limit the project to standard batteries as a power supply. If this is true, what LEDs might be appropriate/compatible with it? Is it feasible to modify LEDs that fit into standard lightbulb sockets or plug into wall sockets for use with a battery power supply?

 

[phinds]

Why not just buy a LED flashlight or two?

 

[Simon Bridge]

Welcome to PF;
You also need to specify how bright you want the box to be - i.e. what power are you hoping to put through the light-source. Then you can select batteries based on price and how much power they can supply.

i.e. you want to run a led lamp designed to use 10W at 12V, then you'd hook it to a car battery and it will draw 10W each hour until the battery voltage starts to drop. You need to know how the battery performs at the load too ...

 

[AndrewBourhis]

If you don't want to build your own, you could just buy battery-powered, wall mount LED night-lights.

http://www.destinationlighting.com/storeitem.jhtml?iid=337903&utm_source=GoogleShopping&utm_medium=CSE&utm_campaign=AccentLamps&gclid=CN3M_b2N-rgCFap7QgodJBwAaA

Buy a few of these and place them strategically along the walls/ceiling. Should do the trick, if you are willing to replace batteries every so often. They sell these at ACE hardware I'm fairly sure...

 

[meBigGuy]

You might consider 12V led lighting strips from Amazon. And a Black and decker Auto Jump starter which gives you a chargable battery in a reasonable case. (but they are only like, say, 9 AmpereHours so you may not get the hours you want)