What is a projector bulb? What kind of projector bulb is better?

In the projector market, there are various types of projectors. Although the types of projector bulbs are not up to the level of projectors, even if there are only four kinds, each one has its own characteristics. So which projector bulb is better? Let's take a look together.

What is a projector bulb?

Projector light bulb, as its name implies, is the light bulb used by projector. At present, the main light sources used are UHP lamp (super lamp), UHE lamp and metal halogen lamp. UHP lamp is an ideal cold light source, but it is generally used in high-grade projectors because of its high price. UHE lamp produces cold light and has a compact shape. Under the same power consumption, it can generate a lot of light and has a long service life. When it breaks down, it will go out immediately. Its advantages are long service life, more than 4000 hours of normal use and small brightness attenuation.

What kind of projector bulb is better?

1, UHP bulb: UHP is a patented technology invented by Philips and belongs to ultra-high pressure mercury bulb. Ideal cold light source, generally used in high-end projectors. Small size, under the same power consumption, it can generate a lot of light, effectively inhibiting the occurrence of flicker. The weight is only 4 kilograms, less than 2 liters, which is easy to carry. Its screen illumination exceeds 1 100 lumens, which can reach the bright XGA display level. Long life, high price, low power consumption, light weight, high brightness and low calorific value.

2.UHE bulb: UHE bulb is a cold light source and an ideal light source widely used in mid-range projectors. It will hardly decay before 2000 hours of use. UHE bulbs use optical principle to filter out infrared rays, emit cold light, and the heat is relatively small, which can effectively reduce the power consumption of projectors. In the environment-friendly brightness mode, the noise is only 28dB, providing users with a quiet atmosphere. After closing the lens cover for 20 minutes, the projector will automatically turn off, which can effectively save power consumption. The running power consumption is only 275W, achieving an ultra-high energy efficiency ratio. Moderate price, long service life, stable brightness, low noise and energy saving.

3. Metal halogen lamp: Metal halogen lamp produces warm light, which requires high power to obtain the same luminosity as UHP lamp and has a short half-life. General use of 1000 hours will reduce the brightness to about half of the original, with high calorific value and high requirements for the cooling system of the projector, which is not suitable for long-term projection. Low price, short service life and high calorific value.

4. Xenon lamp: Xenon lamp is a kind of light source that generates arc by discharging between positive and negative electrodes. Because of its high technical content and high price, it is only used for high-end projectors at present. Because the spectrum of xenon lamp is closest to natural light, it can provide better colors than other light sources. Compared with UHP bulb, xenon lamp has the advantage that it can be turned on and off at any time, and can be turned on again immediately after being turned off, which is impossible for other projector bulbs in the past. High technology, high price, excellent color and fast operation.

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