I fixed a China Torch with New LEDs and a Diode, it failed probably on a drop shock, the battery wire cut … then when put on charge Few LEDs went bad, as battery was absent in ckt. The Success of the LED Lamp design review - 1.5uF voltage rating can… more »
A typical Mains Powered China Lamp. On power down, LED light turns on for around 1/2 hr. Gets damaged on lightning activity and wide (uS not nS) transients above 300V. Drawing may have error. Many products and components were made over the last 10 years… more »
Posted by dapj20 on Apr 01, 2019 in Lamps-LED, LED-Lighting
Colorful Light Emitting Diodes and LED Lamps. Colorful Lights, LED Lighting, Automobile Lamps, Cycle Lights. Decorative LED Effects. Annunciations and Indicators. LEDs are Omnipresent. Series Connected Voltage Boost Circuit ....Eventually a topology… more »
This is another LED lamp from China, these people make nice lamps and also good designs of the plastic enclosure. Here by a clever enclosure design it is both a emergency mains bulb and Torch/Flashlight. The price is low and they use a small sealed… more »
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