The advantage of IP cameras is that cameras can be added to your existing networks and can be controlled and viewed from almost anywhere you can get internet access.
Hard Disk Recorders
No more VHS tapes to control and change, all images are recorded upon a hard drive where you can decide upon quality and retention of data period. Incidents can be downloaded onto either CD or DVD from an easily accessible men.
LED IR Lighting
No more expensive filament bulbs to illuminate the required area of protection and poor bulb life, these LED lamps are quite remarkable in both low power and reliability.