Energy saving devices promise to reduce electricity consumption and lower utility bills. Popular options include smart thermostats, LED bulbs, and solar panels, which have been proven to offer substantial savings. However, not all products are effective. Devices like "electricity saving boxes" and "power saver plugs" often claim to cut down household energy use through power factor correction, a technique beneficial only in industrial settings. These claims are largely fraudulent, as these devices do not impact residential electricity bills. When considering energy-saving gadgets, opt for well-researched, proven technologies to ensure genuine savings.