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These solar-powered lights typically cost $18 for a two-pack, but they’re $5 off right now, so you snag a set for just $13. That’s just over $6 each. Need more than two? The four-pack is an even ...
This article proposes a three-phase resonant driver based on the resonant switched capacitor (RSC) for the light emitting diode (LED). The employed LED is chip-on-board (COB) based technology, ...