Most projectors use Metal Halide. When the lamp is on, the voltage across the bulb is about 60-80V, the gas pressure in the bulb is greater than 10kg/cm, the temperature is thousands of degrees, and the filament is in a semi-melted state. Therefore, it is strictly forbidden to shake when the projector is turned on, move the projector to prevent the bulb from bursting, and do not disconnect the power immediately after stopping use. The machine should automatically stop after the heat dissipation is completed. The damage caused by the power failure in the heat dissipation state of the machine is the most common damage to the projector. One of the reasons for repair. In addition, reducing the number of power on and off is beneficial to the life of the bulb.
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