The LED ring light uses the high-power and high-brightness LED. It could improve the stability of the light. It adopts the PWM tune technology. when using the light, the color temperature is more stable, power dissipation is much lower, life time is longer than fluorescent lamp, reliability is much higher, reality uses cost is much lower. width voltage designs could satisfy the need of different consumers. All the crust of stainless steel which are chrome-plated remains the metal texture and have the antistatic function. It applies to IC industry especially for peculiar occasion. Cause the LED luminescence light is a cold source, it fits to observe temperature of sensitive object.