User Manual LED12.BB-12/24-
350
Rev 1.1
22-12-2010
2 of 2
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Reproduction and use of information contained within this document is
forbidden without the written consent of WESTERN CO. s.n.c..
Connect to the input terminal-block the power supplying cables +VDC, -VDC and DIMMER, paying attention to
respect the right polarities. In case of direct power supplying from battery the connection causes the lamp
activation and the entry into service of the device.
Lighting performances: LED12.BB-12/24-350 has been optimized for the projection ob billboard with 90°V e
140°H asymmetrical opening angle so to obtain a good uniformity even for a minimum distance of projection.
Typically for installation on billboard having dimensions 4x3mt we obtain the following Isolux diagram:
LED maximum junction temperature protection:
In case of high environment temperature, single LED string failure or elevated power dissipated on the same
LEDs, the control electronics provide to limit the junction temperature of the LEDs within the limit of 100°C. Such
a protection is realized through micro-controller control that limits the supplied power through customized
software of management Western CO. This micro-controller allows the power limitation also in case of reduced
flux.
+ VDC
+ VDC
+ VDC
+ VDC
---- VDC
VDC
VDC
VDC
DIMMER
DIMMER
DIMMER
DIMMER