A multifaceted reflector EcoLight home lighting (typically abbreviated MR) light bulb is a reflector housing format for halogen in addition to some LED and fluorescent lamps. MR lamps were initially designed to be used in slide projectors, however see use in residential lighting and retail lighting as properly. They are suited to functions that require directional EcoLight home lighting reminiscent of monitor lighting, recessed ceiling lights, desk lamps, pendant fixtures, landscape lighting, retail show lighting, and bicycle headlights. MR lamps are designated by symbols corresponding to MR16 the place the diameter is represented by numerals indicating models of eighths of an inch. Frequent sizes for basic lighting are MR11 (11⁄8 inches, EcoLight home lighting 35 mm) and EcoLight MR16 (16⁄8 inches, EcoLight dimmable 51 mm), with MR8 (8⁄8 inch, 25 mm) and MR20 (20⁄8 inches, EcoLight home lighting 64 mm) utilized in specialty applications. Many run on low voltage rather than mains voltage alternating current so require a energy provide. 3,314,331 for a miniature reflector lamp in 1967. The innovation was utilizing the lamp rim, reasonably than the base, because the reference aircraft for focusing.

This allowed extra flexible electrical mounting preparations and extra exact focusing. Most MR lamps encompass a halogen capsule (or, bulb) integrated with a pressed glass reflector with a base conforming to bi-pin GU5.Three standard. The reflector controls the course and spread of light forged from the lamp. Some lamps use an aluminum coating as a reflector. Others use selective dichroic coating that displays visible light and allows infrared radiation to pass via. This type reduces heating of illuminated objects since much less infrared radiation is current in the sunshine beam. However, dichroic lamps should solely be used in appropriate fixtures that can dissipate the heat. Dichroic lamps must not be fitted to recessed or enclosed luminaires with the IEC 60598 No Cool Beam image. The brightness of MR lamps might be adjusted when used with appropriate gentle fixtures and dimmers. Nevertheless, the coloration temperature adjustments significantly when the lamp is dimmed, shifting dramatically to the warmer finish of the spectrum.

Like all halogen lamps, EcoLight home lighting MR lamps produce significant heat and EcoLight bulbs care have to be taken to keep away from contact with skin or proximity to flammable materials when the lamp is on or has been on lately. Halogen lamps (18 lm/W typical) are more vitality environment friendly than regular incandescent lamps (15 lm/W typical) however nonetheless fall far behind different more-current sorts corresponding to fluorescent lamps (80-a hundred lm/W), fuel discharge lamps (100-200 lm/W depending on types), and LEDs (125-one hundred fifty lm/W typical in bright white relying on fashion). With each types of incandescent bulbs, helpful life may be significantly shortened if their filaments expertise mechanical shock or vibration. Utilizing an digital transformer with a soft begin characteristic can considerably extend life, as it reduces the characteristically excessive inrush current that occurs initially when the lamp is cold. Dimming also extends life considerably. MR lamps, like all quartz-halogen lamps, EcoLight home lighting produce some undesirable ultraviolet light. Usually, this must be filtered out.

Also, the quartz capsules of the lamps may rupture or explode upon failure of the lamps. For these two causes, some MR lamps embody a cowl glass that serves as an integrated ultraviolet filter and explosion shield. MR16 lamps lacking this cover require the use of a fixture that incorporates an external piece of glass specifically designed to offer each ultraviolet and physical protection. MR lamps can be found in 10-seventy five watt energy scores (150-800 lumens). MR lamps most frequently function at 12 volts, although they are also accessible in other voltages. These lamps use a bi-pin connector for power: 12-volt MR11 bulbs often use a GU4 base, and 12-volt MR16 bulbs often use a GU5.3 base. The frequent 12-volt MR16 lamps, EcoLight LED bulbs therefore, require a ferromagnetic or electronic transformer-generally misnamed as a ballast-to convert the 120- or 230-volt mains voltage to the additional-low voltage required by the lamp. Sure MR lamps can operate straight on the mains voltage. These lamps sometimes use a GU10 flip-and-lock base, so that they cannot be unintentionally interchanged with low-voltage lamps.

GU10 is distinguished from the decrease-voltage MR lamps by the U-shaped ceramic base mount with a ten mm (pin center-to-heart distance) 2-pin bayonet mount. MR16 lamps with an built-in transformer are also available. These lamps have screw bases to fit commonplace medium-base Edison sockets. MR lamps are generally accessible in range of color temperatures, from about 2700 Okay to 7000 K, to fulfill varied functions. Retrofit lamps that generate light by a special principle however makes use of the MR type-issue can be found. For instance, LED-based MR16 lamps seem much like halogen lamps and can be utilized in most fixtures designed for MR lamps. The same is true of MR11-appropriate LED lamps. Fixtures designed for halogen MR16 or reduce energy consumption MR11 lamps that use digital transformers could should be retrofitted with LED-appropriate transformers. There is a wide number of designs, varying considerably with regard to beam width, light colour, effectivity and luminous power.

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Pub: 14 Aug 2025 21:04 UTC

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