I make these simple lamps. The electronics are: 18650 li-on battery, a small charger and a buck converter to get the voltage down to 3.1 Volts (You can also use a resistor.)
Also at:
www.instagram.com/muscroftwork...
I make these simple lamps. The electronics are: 18650 li-on battery, a small charger and a buck converter to get the voltage down to 3.1 Volts (You can also use a resistor.)
Also at:
www.instagram.com/muscroftwork...