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Light Activated Switch Without Relay

Light/Dark Activated Switch circuit without Relay The Working Principle of this Automatic Bulb Switch same as My previous Project Automatic Transformerless Light Switch.  But Here Used A Triac At the place of Relay. In the circuit, There is no used Relay for switching.  This is Automatic Light Controlled Bulb Switch With LDR Using Without Relay  When Light fall on LDR in […]