Dark nights warning for CCTV users

Product Profile

With the onset of dark winter nights Derwent are sending out a warning to CCTV system designers and users; give greater consideration to illumination.

“We estimate that as many as half of existing CCTV systems currently deliver unusable images during the dark winter months” says Marketing Director Shaun Cutler.  “At this time of the year systems can be adversely affected from mid-afternoon onwards.  In fact, during winter, light levels can drop as early as 3pm leaving CCTV systems vulnerable.”

As light levels fall the camera struggles to capture an effective image and without sufficient light the picture quality seriously deteriorates.

Many CCTV systems installed during the summer fail when they come up against the challenges of dark winter conditions” says Shaun Cutler.  “The addition of a Derwent Infra-Red lamp can bring a system alive again, ensuring that it delivers pictures on a 24 hour basis.

A comprehensive guide to night-time illumination is available on-line at www.DerwentCCTV.com or by emailing Sales@DerwentCCTV.com.
Read more

Technical Specification

Make Derwent
Manufacturer Derwent Systems
Model code SuperLED 20/940
Lamp Wattage 140 W
Lamp Type Narrow
Distance 175 m illumination range
Width 20 o beam angle
Filter nM 940 nM filter
Physical Specifications Dimensions mm: 240 x 236 x 186
Weight kg: 5.85
Additional info Solid State > 5 years life with Robust aluminium casting/extrusion, usable indoors or outdoors. Low voltage at camera head. Current Controlled - Supplied with dedicated Derwent Power Supply Unit. Available in a black colour.
Download PDF version Download PDF version

Related Whitepapers

Making sense of today’s security camera options