220V 30W mains voltage LED (a better one)
Today let's test another mains voltage COB LED. This time it's a 90x75mm 220V 30W LED with 64x 3528 (or 2835?) SMD LEDs on it. It comes from Ebay for 3 USD including shipping (later I found another seller that sells it for 2.40 USD). It has three 3000B current regulating chips. It has about double the luminous efficiency of the previously tested mains LEDs!
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Видео 220V 30W mains voltage LED (a better one) канала DiodeGoneWild
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Видео 220V 30W mains voltage LED (a better one) канала DiodeGoneWild
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