LEDtronics is on the market with a pocket flashlight that uses three white LED lamps. It retails for $19.95. The White MiniFlashLED is 5 inches long and weights 2.1 ounces. It will operate for three to four days on three replaceable E90 N-cell alkaline batteries; the company says that is 20 to 50 times longer than equivalent incandescent-lamped flashlights. Info: www.ledtronics.com.