How to use: 1. Connect with 12V power adapter to DC port, after power on, the RED light on; 2. V-IN connect with video signal input, the other side connect with the device which to receive converted video signal; 3. If you connect V-OUT/VGA/HDMI at the same time, press button A to shift different signal to display. The default output signal type is HDMI. 4. When using HDMI output, press button B to shift Video resolution between 1080P or 720P. 5. When using CVBS output, press Button B to shift PAL/NTSC mode. Note: VGA external module is included in the package. AHD to HDMI Signal Convertor Main Features: This is a 4 in 1 high definition video signal convertor, it convert AHD/TVI/CVI/CVBS signal to HDMI/VGA/CVBS signal. The convertor will recognize input video signal automatically. it compatible with 1080P,960P,720P,480P signal input. The output HDMI signal support 1080P and 720P. You can shift it by the button on convertor. MPS wide power 5V-20V design helps it widely used in different working conditions. FAQ: 1. Why there has no video after I connect V-IN and V-OUT? A. Please confirm if the monitor signal type is same as convertor output type. And please confirm if convertor signal shift to the correct mode. 2. Can I use my own power adapter with convertor? A. Convertor support 5V-20V power input, please use the adapter within this range and good quality. Color: Green Material: PC+metal Package Contents: 1 x signal convertor board(Slightly different from the factory)