Just  as Computex Taipei 2011 was drawing to a close, Gem Hsin Electronics Co. Ltd., maker of LED lighting products, announced the USB LED Desk Lamp - TOPAZ series at the exhibition. The TOPAZ series of table lamps are specially created for desktop and notebook PCs with a power-saving design that consumes only 2 watts per hour and provides up to 500 lux of illumination on desktops. The elegant shape and distinctive use of USB power in the series quickly drew an enthusiastic response from consumers after the release of the product line. One of Japan&...