Tag Archives: LED Light home made

How To Make 1.5 Volt LED Light Lasts for 30 hours

A Ferrite Core Coil Enameled Copper wire Make 10 Turns And Then Make 20 Turns Old Remote Control Board You Can Use PCB Board D882 NPN Transistor A Resistance 120 Ohm 3 Volt LED 1.5V Batter AA Size With New Battery It Lasts for 30 Hours A Dead 1.5V Battery Thank You For Watching. As found on YouTube