Can someone tell me where AC to DC conversion happens in this type of LED light ? This is retrofit LED light which fits into can which has AC current. How and where does it step down voltage and also convert current from AC to DC ?
asked Nov 30, 2020 at 2:44
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1 Answer
The voltage conversion (if nessessary) is done inside the lamp housing that you pictured. This type of retrofit lamp is designed to fit into existing recessed cans that are designed to take a reflector bulb with a standard base. If you disconnect the orange connector and screw the base adapter into a bulb socket, a voltage meter will show 120v AC at the orange connector.
There are some cans that are designed to work with this type of bulb/bezel combo and supply the orange connector inside the can instead of a screw-in light bulb base.
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True I have 2 4’ led lamps on my work bench that had cheap driver circuits and failed. the lamps ran on 60v dc so I tossed a full wave bridge on a cord and wired the 2 lamps in series I am still wondering how long they will last after 3 years. The conversion is usually a driver circuit that regulates the voltage and current but in my example a full wave bridge it is just 4 diodes converting ac to dc doesn't take much. +– Ed BealCommented Dec 2, 2020 at 14:58