Brightness is not the only standard. How can I buy projection light bulb?
UHP bulbUHP lighting is the full name of (Ultra High Performance), which belongs to the ultra high pressure mercury lamp, the life is long, generally the nominal 6000 hours, even the longest nominal 12000 hours, total working time of 4000 hours after the brightness does not appear obvious attenuation.UHP is a patented technology invented by PHILPS, which instantly goes out when the bulb fails. Compared with the UHE bulb, the UHP bulb can produce large amount of light not only under the same power consumption, but also can effectively suppress the flicker, and the appearance is smaller, the brightness attenuation is smaller, and the service life is longer. UHP bulb is an ideal light source for projectors, but only slightly higher in price at present. It is only used by high-grade projectors. UHP lighting is divided into 100W, 120W, 150W, 200W, 250W, cup size can be divided into 50*50mm, 65*70mm, 78*78mm, circular cup etc..
Metal halogen bulbThe advantages of metal halogen lamp is cheap, the disadvantage is metal halide lamps produce warm light, high power requirements in order to obtain the same luminosity, and the UHP lamp has a short half-life, general use 1000 hours will be reduced to the original brightness around half, and high heat, high requirements of the cooling system of the projector, for a long time the use of projection. UHE bulbUHE light bulb is also a cold light source. It is an ideal light source widely used in mid-range projectors. And the price is moderate, brightness stability, used 2000 hours ago, almost will not decay.
Bulb, as the only consumable material of projector, is an important factor that must be taken into consideration when choosing projectors. At present, projectors are generally used metal halogen lamps, UHE bulbs, UHP bulbs, these three light sources. The metal halogen bulb has the advantage of being cheap, and the drawback is that the half-life is short, and the brightness is reduced to about half of the total time it takes about 1000 hours. And because of high heat, the projector cooling system requirements, it is not suitable for a long time (more than 4 hours) projection use. The advantage of the UHE bulb is its moderate price and the brightness does not decay almost 4000 hours before use. Due to low power consumption, it is customarily referred to as a cold light source. UHE bulb is an ideal light source widely used in mid-range projectors. The UHP bulb has the advantage of long service life, and can normally be used for more than 4000 hours, and the brightness attenuation is very small. UHP bulb is also an ideal cold light source, but because of its high price, it is generally used in overhead projector.
