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1. (WO2017182260) DC-POWERED LIGHTING DEVICE

Pub. No.:    WO/2017/182260    International Application No.:    PCT/EP2017/057941
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Wed Apr 05 01:59:59 CEST 2017
IPC: H05B 37/02
F21K 9/20
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: WENDT, Matthias
RADERMACHER, Harald, Josef, Günther
Title: DC-POWERED LIGHTING DEVICE
Abstract:
A DC-powered lighting device (100) for placement in an external fixture (102) (104), the DC- powered lighting device comprising a lighting unit (110), connector pins (112) configured to mechanically and electrically connect the DC-powered lighting device to the light fixture, a probing unit (118) connected to the connector pins and configured to determine whether electrical power is currently available via the connector pins and to provide a power-present signal indicative of the current availability of electrical power via the connector pins, a DC-power input unit (114) configured to receive DC power from a second external electrical power source, and to deliver the received DC power to the lighting unit and a switching unit (120) configured to allow the delivery of the DC power to the lighting unit in dependence on the power-present signal.