The good circuit design of LED camera lamp is also an important factor to guarantee its quality. LED lamps have voltage requirements, voltage fluctuations will also cause light intensity and color temperature changes, which is not conducive to the application, but also seriously affect its quality and life. If the voltage exceeds 20% of the rated value, it will cause the damage of the LED lamp. Therefore must require the camera lamp has the high intensity voltage stabilizing circuit. Good camera lamp voltage regulation range is very large, even if the power supply voltage between 6V to 24V significantly change, the camera lamp still maintain the original light intensity and color temperature. For example, bl-v3000 and bl-5500k camera lights can be used within the dc6v~dc24v voltage range.