IR vandal-proof dome camera Built-in 3.6 and 6mm lens Eagle eye IR LED: 20pcs Effective viewing distance: 15m Diameter: 5mm TV system: PAL/NTSC The description of different chips as follows: HQ: Resolution: 520TV lines PAL (H x V): 752 x 582, NTSC (H x V): 768 x 494 Current: 200mA Minimum illumination of 0.4 Lux/F1.2 STH: Image sensor: 1/3-inch Sony Resolution: 480TV lines PAL (H x V): 752 x 582, NTSC (H x V): 768 x 494 Current: 200mA Minimum illumination of 0.5 Lux/F1.2 STL: Image sensor: 1/3-inch Sony Resolution: 420TV lines PAL (H x V): 500 x 582, NTSC (H x V): 510 x 492 Current: 150mA Minimum illumination of 0.8 Lux/F1.2 SFL: Image sensor: 1/4-inch Sony Resolution: 420TV lines PAL (H x V): 500 x 582, NTSC (H x V): 510 x 492 Current: 150mA Minimum illumination of 0.8 Lux/F1.2 PTL: Image sensor: 1/3-inch Sharp Resolution: 420TV lines PAL (H x V): 500 x 582, NTSC (H x V): 510 x 492 Current: 100mA Minimum illumination of 1.0 Lux/F1.2 PFL: Image sensor: 1/4-inch Sharp Resolution: 420TV lines PAL (H x V): 500 x 582, NTSC (H x V): 510 x 492 Current: 100mA Minimum illumination of 1.0 Lux/F1.2 AGC: on/off Gamma characteristic: above 0.45 White balance: auto Backlight compensation: on/off S/N ratio: greater than 48dB Power supply: 12V DC