| CPC F21L 4/085 (2013.01) [F21L 4/005 (2013.01); F21V 23/04 (2013.01)] | 17 Claims |

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1. A dual-power source lighting device, comprising:
a light source;
a first power source operable to power the light source;
a second power source different from the first power source and operable operable to power the light source;
a cartridge comprising the first power source and the second power source wherein the first power source is sealed within the cartridge;
at least one switching device that switches between a first configuration in which the first power source powers the light source and a second configuration in which the second power source powers the light source;
at least one status indicator that indicates a user-selected one of the first power source and the second power source that is powering the light source; and a body, wherein the cartridge is removable from the body and the first power source is unremovable from the cartridge.
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