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Solar cell fabric refers to textiles that have integrated photovoltaic (PV) cells, enabling them to generate electricity when exposed to light. This integration can be achieved by embedding small-scale solar cells within textile yarns, which are then woven into a fabric, or by applying flexible photovoltaic films and coatings onto planar textiles.
A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...
These battery-powered headlamps are another essential for winter storm prep and possible power outages. Their 180-degree illumination makes navigating dark spaces a breeze and they can even ...
The most common type of floodlight was the metal-halide lamp, which emits a bright white light (typically 75–100 lumens/Watt). Sodium-vapor lamps are also commonly used for sporting events, as they have a very high lumen to watt ratio (typically 80–140 lumens/Watt), making them a cost-effective choice when certain lux levels must be provided. [4]
Power-failure lights are designed to keep their batteries charged from a wall plug and to automatically turn on after an AC power failure; the power-failure light can be removed from the wall socket and used as a portable flashlight. Solar powered flashlights use energy from solar cells to charge an on-board battery for later use.
A Chandra image of NGC 4485 and NGC 4490: two potential ULXs. In astronomy and astrophysics, an ultraluminous X-ray source (ULX) is less luminous than an active galactic nucleus but more consistently luminous than any known stellar process (over 10 39 erg/s, or 10 32 watts), assuming that it radiates isotropically (the same in all directions).
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