Abus IPCS34511B Installation Manual - Page 17

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3.5 Notes to the usage of internal white light LEDs

The LED range is strongly dependent on the environmental conditions. If the area in the

camera's field of view reflects poorly or if there are no objects within the max.

illumination range, the brightness of the video image at night may be too low. This will

result in poor usability of the video image.

In addition, when installing the camera it must be ensured that no objects are located in

close proximity to the camera's field of view (e.g. roof gutter or wall). These objects can

reflect back the LED light, resulting in circular fading on the video image in the opposite

direction to the object.

The LED range might be reduced as well by strong absorbing surfaces (e.g. asphalt).