The PAR value of lamps and lanterns is what mean?
PAR lamps with ordinary PAR30 PAR36 PAR46 PAR56, the volume has long have short, also known as tube light, reflected light beam, used for stage lighting, dynamic change color, etc., is a common type of lamps and lanterns, stage, because of the large power consumption compared and baked think, now gradually replaced by ledpar lamp.
Led lamp holder from device into the bayonet, Edison, from data into bakelite, plastic, metal, ceramics and other materials, usually with lamp holder, such as the most common led bulbs E27 is screw cap, and cooperate with the led fluorescent lamp, lamp holder is usually called T8 lamp holder or T5 lamp holder and so on, the other on some lamp holder use environment protection level is as high as IP68, when the choose and buy, please according to the demand for the corresponding IP protection class lamp holder (waterproof, etc.), usually with lamp holder would use the IEC (international electrotechnical commission standard) safe authentication, classification: lamp holder E14 and E27, E12 at 11:45 and E26 E beginning is usually: screw cap GU10 GU, such as the beginning of the means for our daily use of bayonet, GU: G said lamp holder type is a plug-in, U said local u-shaped lamp holder glyph, the figures show that the light behind the foot hole center distance (MM unit is "MM"). MR16led shoot the light, is straight insert part of MR11 begin with MR lighting small shoot the light of the commonly used this kind of lamp holder, two pin devices are usually small shoot the light lunch. MR16led shoot the light, GU10 led lamp is everybody's different lamp holder, led shoot the light, PAR30 PAR38 led to shoot the light is different in diameter, is the world's a specification and term, light cup, shoot the lamp to be known, suitable for different ceiling lamp holder. MR16 led lamp in the lighting industry for more than 2 inches belt refers to the largest diameter face reflector lamps and lanterns, MP11 is a bit smaller than MR16 led lights, lamps and lanterns. MRMR: Multiface Reflect, the more surface reflection (lamp cup), the figures show that the lamp cup diameter is 1/8 of an inch (unit), the calibre of the MR16 = 16 x 1/8 = 2 "material 50 mmpar lamp common PAR30 PAR36 PAR46 PAR56, volume
PAR photosynthetic active radiation abbreviations: photosynthetically active radiationPAR photosynthetic available radiation, green plants for photosynthesis process, absorption of solar radiation in the chlorophyll in excited state that part of the energy spectrum. About 400 ~ 700 nm wavelength, represented by symbols Qp, units of w/m 2. Photosynthetic active radiation is plant life activities, organic material synthesis and yield formation of energy sources.
The PAR value of lamps and lanterns is parabolic shape of the lamp. Said is the shape of the lamp. For example, PAR20, PAR30 PAR38 said maximum overall diameter size. Such as PAR38, maximum overall diameter size of 38 (1/8) * * 25.4 120.0 mm material 38 in Britain is divided into units, the conversion relation is as follows: 1 the points = 1/8 "1 inch = 25.4 mm.
