Led Photocell Project

[copper]

I know there is thousands of projects, out there for led night lights. But I'm having a problem because, all the ones that I'm seeing are 9v. I suck at math and have no idea how to figure it out for 3v. I'm trying to run about 15 leds, and I need the photocell to turn them off in the daylight. The photocell I thought could just be inline, but turns out it works backwards, from what I thought. So i will be running 3v with 15 leds. Can someone help me figure out this circuit? I have burned my fingers raw, from resisters. And i'm about to give up. Please Help!!!

 

[Resqueline]

3V applied directly to white LED's gives you no control over the current that will pass through them (but you would connect them in parallell with no resistors anywhere)..

 

[copper]

yes it would be just the 3v going straight to the leds running parallell