LED lamp - Wikipedia, the free encyclopedia These standards detail performance specifications for LED light sources and prescribe test methods for solid-state lighting products. The Illuminating Engineering Society of North America (IESNA) published a documentary ...
Flashlight - Wikipedia, the free encyclopedia A flashlight is a hand-held portable electrically-powered light source, and is often called a torch in areas outside of North America. Usually the light source is a small incandescent light bulb or light-emitting diode (LED). A typical flashlight consists
Taschenlampe – Wikipedia Eine Taschenlampe ist eine kleine, mobile Lichtquelle mit eigener Energieversorgung. Der Name entstand, da die meisten Taschenlampen klein genug sind, um in einer Tasche verstaut werden zu können. Die Taschenlampe wurde 1899 vom Engländer David Misell erf
Flashlight - Wikipedia, the free encyclopedia 跳到 LED - LED[edit]. Two LED flashlight extremes: Olight SR90, 2200 lumens (left), Foursevens ...
Talk:LED flashlight - Wikipedia, the free encyclopedia Slight error.[edit]. LEDs do not use 3.0-3.6 volts, the range is far larger due to different colors being ...
Solar-powered flashlight - Wikipedia, the free encyclopedia Solar powered flashlights or solar powered torches are flashlights powered by ... An experimental solar flashlight the size of a credit card features a white LED powered by 16 solar cells.
Torch - Wikipedia, the free encyclopedia A torch is either a wooden or metal rod wrapped at one end with a material that has been impregnated ...
Maglite - Wikipedia, the free encyclopedia Originally Maglite flashlights used krypton or xenon incandescent bulbs. Current models have LEDs, ...
Mechanically powered flashlight - Wikipedia, the free ... The battery or capacitor powers a white LED lamp. The linear generator consists of a sliding rare earth ...
Headlamp (outdoor) - Wikipedia, the free encyclopedia White LEDs were quickly adopted for use in headlamps due to their smaller size, lower power ...
