Wire hookups and LEDs?
hi this is 10sparklebot, i am working on a project, and i have the LEDs, solder, a place to put the lights, and hook up wires. but i don't have resistors. Does anybody know the formula for figuring out the resistors needed?
Secondly, how do i put an on/off switch in between the wire to my battery and the wires to my LEDs? i am basically making a light fixture i guess. i am using a 6 volt battery, as long as i use resistors, the lights should last a while right? it wont drain the battery?