lighting

Memorial Day is considered the traditional start of summer here in the U.S., and we noticed the streets, subways, and elevators getting less and less populated as the week wore on. But it was another full week for the CNET Reviews team, who cranked out more than 20 tech product reviews -- including a few items that are beyond our usual purview.

Hot cameras We sampled only two cameras this week, but both were four-star winners.

The Sony Cyber-shot DSC-HX30V is camera royalty, of sorts: the compact megazoom model is the successor to 2011's DSC-HX9V, an Editors' Choice … Read more

A resourceful videographer, Parker Maimbourg, has managed to build a continuous ring light for just $20.

The setup consists of a cheap, circular LED lamp ($10), an AA battery holder ($1.99), and an unused hotshoe salvaged from an old flash unit. A continuous ring light is typically used to provide even illumination for portraits and closeups and usually costs at least a few hundred dollars.

Basically, Maimbourg rewired all the LEDs on the lamp to a separate battery holder, which will be mounted on the camera's hotshoe. Next, he cut a hole through the center of the circular lamp enclosure to fit his lens, spray-painted the whole setup black for that professional feel, and voila! … Read more

When Barnes & Noble launched a Nook e-reader with an integrated light last month, many speculated that it was only a matter of time before Amazon would release a new front-lit version of its monochrome Kindle e-ink e-reader. Well, according to an unnamed Reuter's source who's allegedly seen a prototype of the product, Amazon is aiming to have that new Kindle in stores by July.

Barnes & Noble's began shipping its $139 Nook Simple Touch with GlowLight at the end of April in time for Mother's Day. The e-reader received a CNET Editors' Choice and Barnes & Noble says that sales have been brisk. … Read more

LightSquared's end is near.

The company filed for bankruptcy today, according to Bloomberg, marking an unglamorous end to its attempt to create an upstart provider of super-fast wireless service.

LightSquared was designed as a neutral wholesale provider of 4G LTE service, injecting additional competition into the industry and giving companies an alternative partner to work with. Despite its network in constant jeopardy, it had lined up an impressive list of partners willing to ride on its network.

LightSquared, in a statement, said the company plans to continue its normal operation through the process, and still plans to build its … Read more

We've all had moments when we heard a mysterious shuffling in the dark. Or we got news that the in-laws were showing up unannounced. Or the Roomba finally became sentient and set out for revenge. Those moments call for a panic button.

The Panic Button Light Switch Replacement Kit from ThinkGeek will at least make you feel a little better in those moments before your Roomba sucks you into its robotic rotors of oblivion. … Read more

Even if your tablet appreciation never deviates from pragmatic, functionality concerns, you'll at least have to admit that a thin tablet has its advantages. Thin tablets are usually sleeker, sexier, and easier to handle. Also, their relative girth does not necessarily preclude them from including plenty of useful connections.

By their nature of being so thin, all tablets on this list are the lightest on the market within their screen-size category. The tablets on this list were chosen with respect to both their weight and girth.… Read more

Toshiba and Bridgelux think they're worked out the key ingredient to making LED lighting mainstream: silicon.

The two companies today announced a partnership to manufacture LED light sources using much of the equipment typically used in semiconductor fabs. They intend have a commercial-scale facility operating next year, according to Bridgelux CEO Bill Watkins. As part of the deal, Toshiba has invested an undisclosed amount in Livermore, Calif.-based Bridgelux.

LED light sources, which are used in everything from TVs and consumer light bulbs, are typically made with a semiconductor -- gallium nitride -- on a layer of sapphire. Bridgelux … Read more

Switch Lighting's LED bulbs have similar technical specs to its competitors, but the startup is counting on clever design and good looks to stand out in a crowded field.

The company plans to make its first three general-purpose light bulbs available this summer to lighting distributors and today is expected to introduce a three-way bulb and a 240-volt bulb for markets outside the U.S.

Its first bulbs are replacements for 40-watt, 60-watt, and 75-watt incandescent lamps. Costing between $40 and $50, they are primarily aimed at commercial customers. Switch Lighting is also working on a less expensive consumer-oriented … Read more

General Electric today introduced a 100-watt equivalent LED bulb which is the clearest example yet of how high-tech lighting has become.

The company's Energy Smart LED bulb consumes 27 watts to give off the same amount of light as a 100-watt incandescent lamp. It will be released in the first half of next year. The price has not yet been set.

GE's announcement, made at the Light Fair industry conference in Las Vegas, shows how lighting manufacturers have finally cracked one of the toughest challenges in LED lighting -- making lamps able to give off a lot of … Read more