How do i go about choosing LEDs for a project? Answered
So i'm planning on building a battery bank to charge my phone and other usb devices . I wanted to also use it as a flashlight, My size is limited, since i was planning on using an altoids tin, and i'm already stuffing two 18650 batteries inside. What i want to know is what is the brightest led i can use that wont need a heat sink? or at least one that will dissipate enough heat into the tin alone.