Science Source December 28, 2009 DVD
EN_00957730_1039
LED floodlight. A light-emitting diode (LED) is based on a forward-biased semiconductor heterojunction. Recently-developed high-power white LEDs are beginning to be used for lighting and illumination applications (called solid-state lighting). Compared to conventional incandescent light bulbs, LEDs are much more efficient, durable, and have longer lifetime. Solid-state lighting is expected to eventually replace conventional incandescent and even fluorescent light bulbs. Shown here is a floodlight that produces 600 lumens of light from 16 W of electrical power and has a lifetime of 25000 hours. It is sold in the USA by Philips.
2011-03-20
EAST NEWS
Science Source
GIPhotoStock
bp0661
0,67MB
25cm x 38cm by 300dpi
16, 600, A, AND, APPLICATIONS, ARE, BANKA, BASED, BE, BEGINNING, BIALA, BIALE, BIALY, BIEL, BULB, BULBS, BULWA, BY, CALLED, CEBULKA, COMPARED, CONSUMER, CONVENTIONAL, DIODE, DURABLE, EFFICIENT, ELECTRICAL, ELEKTRYCZNA, ELEKTRYCZNE, ELEKTRYCZNY, EMITTING, ENERGIA, ENERGY, ENVIRONMENTAL, EVEN, EVENTUALLY, EXPECTED, FIZYKA, FLOODLIGHT, FLUORESCENCYJNA, FLUORESCENCYJNE, FLUORESCENCYJNY, FLUORESCENT, FOR, FORWARD-BIASED, FROM, GIPHOTOSTOCK, GODZINY, GREEN, HAS, HAVE, HERE, HETEROJUNCTION, HIGH-POWER, HOURS, HOUSEHOLD, ILLUMINATION, IN, INCANDESCENT, IS, IT, JASNA, JASNY, KOLBA, KONWENCJONALNA, KONWENCJONALNE, KONWENCJONALNY, LED, LEDS, LEKKA, LEKKI, LEKKIE, LIFETIME, LIGHT, LIGHT-EMITTING, LIGHTBULB, LIGHTING, LONGER, LUMENS, MOC, MORE, MUCH, OF, ON, OPTICAL, OPTICS, OSTWIETLENIE, OSWIETLANIE, OSWIETLENIE, PHILIPS, PHYSICS, PIORUN, POCZATEK, POLPRZEWODNIK, POWER, PRODUCES, RECENTLY-DEVELOPED, REFLEKTOR, REPLACE, SEMICONDUCTOR, SHOWN, SKUTECZNA, SKUTECZNE, SKUTECZNY, SOLD, SOLID, SOLID-STATE, STALA, STALE, STALY, STAN, STATE, SWIATLO, TECHNOLOGIA, TECHNOLOGY, THAT, THE, TO, TRWALA, TRWALE, TRWALY, USA, USED, UZYTA, UZYTE, UZYTY, UZYWANA, UZYWANE, UZYWANY, W, WHITE, ZAROWKA, ZAROWKI, ZIELEN, ZIELONA, ZIELONE, ZIELONY,