DIY Retrofit LED Bulb

 

Starting from an old defect incandescent light Bulb

Bulb_original_wT_c_s

1) You need to remove the socket and break out the old filament.

Bulb_FilametBreakOut

2) Build a circuit with LEDs in series, a full wave rectifier, resistors and capacitors like this one:Circuit_wtBG3) Form the string of LEDs to a compact construction like a helix.

 LED_Helix_tBG

4) Fit the rest of the circuit into the bulbs socket and have a check if it works properly.

 Bulb_Circuit_Check_tBG

5) Reunion of socket and the glass envelop. (Silicone polymer  was used)

 Bulb_reunion_tBG

6) Let it shine!

 IMG_4047_cc

(c)langhans 2014


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