mmtech

I have used IR in the past and the most important thing to know is first the IR sensitivity of the camera you are uesing. the average IR sensetivity on most cameras is between 800-900Htz. The IR light sourse and the camera IR sencetivity should be the same for the best results. The higher in the spectrum you go the less the LEDs will be visable. for example 800Htz LEDs will have a low red glow and 900Htz + will have less visable red glow if eny at all. Higher rang IR is usualy reserved for military use, and quite pricy. be carfull with higher rang IRs they can be harmfull to the eyes, and bepending on local codes you may need to post signs. As far as rang it is the same for the most part as a flashlight more power more light in varying degrees of light spread. The Extreem cctv website has some good demo video you can see. The videos may give you an idea of what you can expect. PS IRs blasters can get hot.

I have just started to read all the posting in the forum. looking to learn all I can. Been in the bizz for a time and love every minute.

i have this unit its great. the batteries that came with the unit went bad after 8 months. i replaced them with energizer rechargables. this unit charges the best when the internal charge sw is on and the external power sw is off. my unit get about 4.5hrs on a charge. If you get the chance take a look at the new Ideal 33-892. it has longer battery life, weighs less and has I.R.E read out.