Unique LED strengthened focusing light for 24-hour monitoring. Effective life of LED lights is up to 20000 hours. Base plate adopts high-quality special materials and reaches IP65 waterproof class. Cds automatic control and the intelligent start of infrared light. Image sensor:1/4" sony ccd or 1/3 sony ccd or 1/4"sharp ccd Horizontal resolution:420TVL or 480TVL IR Distance:25M or 30M or 15M Supplied power:DC12V(+/-10%) 750mA