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A 600W HPS produces 7% more light (watt-for-watt) than a 1000W HPS. [22] A 600W High Pressure Sodium bulb. An HPS bulb produces 60-140 lumens/watt, depending on the wattage of the bulb. [28] HPS grow lights suspended over the grass pitch at Tottenham Hotspur Stadium to encourage grass growth [29]
A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.
"No" sticker [clarification needed] —600 watts (MH/HPS)—Lamps for commercial or industrial lighting are so rare that there isn’t any NEMA sticker. Most 600 watt HPS lamps are used for growing. Most 600 watt HPS lamps are used for growing.
Streetlamp with a ceramic metal halide bulb Ceramic metal halide bulb with G12 socket. A ceramic metal-halide lamp (CMH), also generically known as a ceramic discharge metal-halide (CDM) lamp, [1] is a type of metal-halide lamp that is 10–20% more efficient than the traditional quartz metal halide [2] and produces a superior color rendition (80-96 CRI).
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 ...
A commonly used light in the home in the 1960s in 220–240 V countries was a circular tube ballasted by an under-run regular mains filament lamp. Self ballasted mercury-vapor lamps incorporate ordinary tungsten filaments within the overall envelope of the lamp to act as the ballast, and to partially compensate for the red-deficient light ...