This cameras provides a great all round camera for most vantage points will very good night vision and a range of up to 40 meters at a wide angle with an entry level price this is great value for the quality of image
Color 1/3" Sony CCD,420TVL,0.5Lux,
12mm lens,64 pcs×Φ5 IR leds,
40m IR Distance,bracket with cable built-in
Water resistance:IP66
12v dc 1000ma power supply

The sliver been gives you an extra 10 to 15 meter night vision
on the blue beam this is at the cost of the with of the field
this make it the right choice for a gate way of entry point.
1/3 Color Sony Super Had CCD,420TVL,0Lux(IR on)
16mm lens,6pcs Super Long Range IR Leds,55m IR Distance,bracket with cable built-in
Water resistance:IP66
12v dc 1000ma power supply

This camera is a great option for security and stock monitoring the vary focal with a 2 adjustment screws gives you the range a felid to suite most potions up to 50 mates away in total darkness
4-9mm Manual Zoom Lens
IR working distance:50M
Water resistance:IP66,double glasses
Cable built-in and swivel bracket White and Silver are optional Water resistance:IP66,

this give you more distance than the blue beam with much better night vision possibilities the detachable beams can be position to give night vision into dark corners this is great for tricky areas Color 1/3" Sony CCD,420TVL,0Lux(IR ON),with 12mm Lens,72pcs×Φ5 IR
leds,45m IR Distance,Automatic LED on/off,with bracket