The best rechargeable D size batteries are the new LSD Ni-MH (low self-discharge Nickel-Metal Hybride) cells. These new Ni-MH rechargeable batteries are able to retain a charge for a year, making them suitable for using in flashlights and other low-term applications. See also our full review of the Best AA Rechargeable Batteries and Chargers.
LED TVs are a type of LCD TV that use LED lights to illuminate the screen. In full-array LED TVs the light emitting diodes are embedded across the entire back of the panel, while other models are edge-lit, where the LEDs are arranged around the sides of the panel and illumination is directed toward the […]
Noise canceling headphones work their magic by producing sound frequencies that directly counter the sounds of ambient noise, while still allowing desired sounds (such as music) to come through crystal clear. Full-size noise canceling headphones can offer fantastic sound quality, but sometimes users need a smaller, more portable package for traveling or working out. To allow […]
LEDs offer the best energy efficiency of any widely available lighting technology. And LED lights contain no mercury, as opposed to the compact fluorescent bulbs that have become so common. But recent reports suggest that LEDs may have their own issues with hazardous substances, so should you steer clear of them? Not so fast – […]