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I used a triac to control the AC current to my led bulb đź’ˇ but once the bulb is in on state, it's flickering.

I made a bridge rectifier and using transistor connected to triac, the input is given through PIR sensor

How can I reduce flickering, should I use a relay instead of triac. I just want to ON and Off based on pir sensor detects object

I read somewhere that it's because of small current.enter image description hereenter image description here

I did exactly same in this youtube video https://youtu.be/6Bua0g8HDIY

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    \$\begingroup\$ I don't think flatuation is a proper word. Flatulation is but that means fart. \$\endgroup\$ – Andy aka Oct 4 '20 at 11:29
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    \$\begingroup\$ Do you want the light bulb to be just ON or OFF, or should the brightness also be controlled ? If brightness control is also required, I do not think a relay alone can do it. Please edit into your question a circuit diagram representing your circuit, and the part numbers / values of the components used in the circuit. Also add the specifications of the LED bulb. Does it accept DC or AC ? If so at what voltage. \$\endgroup\$ – AJN Oct 4 '20 at 11:58
  • \$\begingroup\$ I use 20 w led tube light and want to ON and off based on pir detect object \$\endgroup\$ – Sijith Oct 4 '20 at 12:37
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    \$\begingroup\$ use a relay instead of that death-trap circuit. \$\endgroup\$ – dandavis Oct 4 '20 at 19:29
  • \$\begingroup\$ Current is probably too low for the hold-current of your TRIAC. \$\endgroup\$ – winny Oct 11 '20 at 20:26

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