The DM-IR-550H color infrared bullet security camera gives you an outstanding clear color picture during the daytime and a sharp night time image with the 35 high intensity IR LED’s. With 3.6mm Lens. The advanced 1/3” Sony super HAD CCD produces a 550TV lines of resolution and with aid of infrared LEDS, you get 0.5 lux @ F1.2 low light during the night. The on-board auto electronic shutter can adjust the refresh rate from NTSC: 1/60 ~ 1/100,000, PAL: 1/50 ~ 1/110,000, and automatically controls the AGC and white balance. The DM-IR 550H is suited for uses in retail shops, banking, residential security and industrial business locations. This security camera operates efficiently on 12VDC 500mA of power or higher.