Infrared illuminators are designed for covert surveillance without any light. Please make sure your camera is able to work with 850nm infrared light before use. Infrared Illuminator IR HELIOS L-90/50 has wavelength 850nm. The beam light of illuminator is INVISIBLE to naked eyes but gives a red glow of the LEDs. Distance is marked for regular camera with 2MP sensor with “Slow Shutter” mode ON and digital image enhancement modes so-called DSS AGC, DWDR, DNR, 3DNR etc. enable. Please be noted in this case you may get bright and contrast static image, but moving object might get some blur. So if it required to decrease image blur please disable these features in camera menu. With “Slow Shutter” mode OFF and digital image enhancement modes disable distance for camera with 2MP sensor is 50ft. Infrared illuminators do not harm people and pets, but you should not look directly at a switched on light for a long time to avoid unpleasant sensations in your eyes. We include in package special designed mounting bracket provides reliable fixture of the device and it allows to adjust the position of illumination and install the lighting system easily. Built-in light sensor allows the illuminator automatically switch on and off according to the light conditions. It helps to save energy and prolongs service life of the illuminator. IR HELIOS L-90/50 has a cable length of 3 feet, and it's enough to connect Illuminator to a power supply. We recommend to use Microlight PSU-25 with excellent IP67 ingress protection suitable for outdoor installations. You can use any power source with a 12...24V AC/DC not less 7.6W power output. Specification: Distance-up to 100ft Beam Angle-90deg Power consumption-7.6W Supply voltage-12...24V AC/DC Weight-21oz Package content: Illuminator-1pcs Mounting bracket-1pcs Instruction manual-1pcs. If you got any problem with our product we will refund or replace product. Please feel free to contact us if you need any help!