The Best Rechargeable D Size Batteries & Chargers

Maha Power X Ultimate Battery Charger

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. 

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The Best Portable DSLR Cameras For 2011

Sony-NEX-5-hybrid-camera

Back in 2008, digital cameras fell into two basic categories: point-and-shoot cameras, and digital single-lens reflex cameras (digital SLRs or DSLRs). Now, there’s a new camera category that attempts to bridge this divide: Four Thirds Cameras. These cameras combine the compactness of a point-and-shoot camera with the advanced features of a DSLR camera. Depending on who […]

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The Pharox 300 Flame: The Warmest LED Light Bulb Available

Pharox-200-Flame-LED-light-bulb

The Pharox 300 Flame is the warmest LED light bulb I’ve tested. It’s been in a desk lamp in my living room — it gives off a pleasing yellow glow (a 3000 kelvin output). The Pharox’s light quality is very good. Unlike CFLs, this bulb contains no mercury it emits no UV radiation. Typically, quality household […]

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The Most Efficient Public Swimming Pool In The U.S.

richmond-plunge-chlorine-free-solar-heated-swimming-pool

A community swimming pool called the Richmond Plunge has just opened in Richmond, California, and it may be the most efficient swimming pool in the country. The Richmond Plunge has many efficient features: it’s heated by solar collectors, it’s entirely chlorine-free, and the building is powered by solar panels on the roof. The Plunge is […]

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