1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice
RODALCO

240 Volts 100 Hertz 29 LED lamp

This is the improved version of the LED lamp posted about 1 year ago which ran on half wave rectifi

  1. RODALCO
    This is the improved version of the LED lamp posted about 1 year ago which ran on half wave rectified dc directly from the 240 Volts mains.

    As I test my projects thoroughly and want to ensure a good reliability of the project a long time 2000 hours duration run is done prior to posting the details on the web.
    Again, I have choosen for the resistive option because it is more reliable than a capacitor voltage dropper.

    Parts required:

    29 x White LED's
    6 x 2k2 1Watt resistors
    4 x 1N4007 diodes
    small piece of vero board
    discarded CFL lamp base

    Photo's attached with assembly details.

    Calculations in part 2 of this thread.