Soldering a Energy-Saving 38 LEDs Lamp

Today I offer you a helping hand for a closing soldering project: it is an Energy-saving lamp with 38 LEDs in a standard screw-socket.

No programming skills are needed.

The Parts

The ordered DIY kit contains a small PCB for voltage conversion and a round PCB for receiving the white LEDs.

I sorted the items briefly and compared them with the designations on the PCB: everything had been delivered completely.

C2 and the 4x 4007 Diodes are polarized! Have an eye to (+) and (-).

There is a tiny little thing to note in the resistors: the color codes were not so familiar and I have looked up the values of the circuit diagram / PCB.

Based on the number but I could clearly assign it.

Assembly

Solder the long legs from the (white) LEDs to +.

Connect the AC to the AC (non polarized) and the LED-PCB to (+) VCC and (-) GND.

Put the round LED in the socket.

Before it is fixed with hot glue, a 220V test can be performed on the bottom socket with (+) and on the outside of the socket with (-) or just screw it into a suitable lamp socket. If the LEDs appear, the test is successful.