High-frequency eye protection lamp, namely energy-saving incandescent lamp, saves 5 times about 80% electricity, which is more expensive than incandescent lamp. The color temperature value of the lamp tube determines the flexibility of the lamp. Color temperature is too high and too low. 4500-6500K lamps are more suitable for all ages to use LED as lighting products, saving about 80% electricity than incandescent lamps. Disadvantages: the color spectrum is too narrow and the blue light is too strong. In fact, it is very important to protect your eyes if the lamp is not self-luminous. The lampshade should be lowered to ensure that the light comes in. On the other hand, it should be avoided that the light is too close to the staring area (book/desktop), so as to determine whether the brightness of the light is appropriate. Do some tests with an eye-protection light measuring pen.