The DM-CO-5224 is an excellent value in a high performance day & night Security CCTV camera. The CO-5224 gives you 380 lines of resolution at 0.2 lux in day time and 420 lines of resolution at 0.01 lux in night time. This Surveillance camera is loaded with features including video/dc driven auto-iris output, built-in automatic gain control and 1/60 to 1/100,000 second automatic electronic shutter. Power requirement is either 12 volts DC or 24 volts AC, it will automatically detect. No more circuit burns by using wrong power supply again.