[4 pack] Teknikio Blue Star LEDboard v1.0
Highlights:
Starry starry LEDs! These blue star-shaped sewable boards with gold tips have a blue LED in the middle that lights up when you connect 3V across the + and - pads. Use with a CR2032 battery and the Teknikio battery holder or another 3V power source. Can be used with a higher voltage with a resistor, forward voltage is 30 mA and forward pulse voltage is 150 mA.