Spot lights only shine in one direction, in a cone. They are perfect for flashlights, car headlights or lamp posts. They are the most expensive on the graphics processor.
LED Spot Cup, also known as LED lighting, is to use light-emitting diodes as the light source lamp.
LED射灯杯又称LED射灯，就是用发光二极管作为光源的射灯。
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At measured hot spot temperature, the evaporation rate is theoretically calculated and the relations between emission material storage and lamp life are obtained.