Tim2255
Newbie level 5
I have 12 LED lights running to a 12A toggle swith then to 4-AA batteries. The LED are 3.5V. Do I need to put a resitor to reduce power so I don't blow the lights or damage anything? If so what size resitor would I need? I would like to put the resitor between the battery and toggle switch, so it is just one resitor.