3V LED lamp beads 1W flashlight bulb torch
1W LED lamp bead When this lamp bead is connected to a 3.7V lithium battery, a 1.5 ohm resistor needs to be added to limit the current.
When connected with 5V a 3ohm resistor will be good to limit current
with 12V a 10 ohm resistor will work fine
resistor power shouold also be greater than 1 w
Rated voltage DC 3V
Weight 1.5g