Summer is coming in hot, but you don’t have to. The Kissair Portable Air Conditioner is your all-in-one defense against sweltering temperatures, sticky humidity, and stuffy indoor air. Originally ...
This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor Cx along with diodes D1 through D4 forms the AC step ...
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