What is the relationship between the power of projection lamp and luminous flux and luminous efficiency?
Only power, light efficiency, brightness is big. To our company, for example, I projector lightLight efficiency LED lamp for 100-110lm/W metal halide light bulb is relatively low, only 50-90lm/W. For example: 20W LED lightsLight efficiency = total luminous flux / bulb power =2000lm/20W=100lm/W 1200W metal halide lampLight efficiency = total luminous flux / bulb power =110000lm/1200W=91.7lm/W
Start with a formula: light effect = total luminous flux / bulb power. From this formula, we can see that the higher the luminous efficiency is, the stronger the ability of the lighting equipment to convert electric energy into light energy, that is, the higher the light efficiency is, the more energy saving.At the same time, the above formula is deformed: total luminous flux = bulb power * luminous efficiency. That is, under the same power, the higher the light value, the greater the brightness.If some businesses only promote their projection lamp power is relatively large, but the light effect is relatively low, so the relative brightness is relatively small, which is why we have the same brightness power products from different manufacturers is not strengthConsistent cause. Therefore, customers in the purchase of recommended projector products, but also pay attention to light efficiency of this parameter.
Most of the time when the purchase of projection lamp products, will be asked to the power, and the size of lumen flux, because the power of different types are different, the lumen and the flux is also somewhat different, today for everyone on the photoelectric Luddy these data make a simple answer.
