Patent ID: 7878678
Filing Date: 2011-02-01
Classification: B60Q,E01F,F21S,F21V,F21W,Y10S

Abstract:
1. A portable lighting device to provide light as a stand-alone device and also when coupled to a second portable lighting device, the portable lighting device comprising: a. one or more light emitting diodes each comprising a first protective housing; b. a power source coupled to the light emitting diodes; c. a first controller coupled to the light emitting diodes and to the power source to control operation of the portable lighting device, wherein the first controller is programmed to operate both independently and in response to signals from another portable lighting device; d. a first connection port configured to selectively couple the portable lighting device to a second portable lighting device, the second portable lighting device having a second controller and a second connection port, wherein both power and control signals are provided through the first connection port between the first controller of the portable lighting device and the second controller of the second portable lighting device when the portable lighting device is coupled to the second portable lighting device; and e. a second protective housing arranged to protect the one or more light emitting diodes.