Found 6th Feb 2015
I'm not sure why there is 2 in the pack maybe 1 for the bedroom & 1 for the hallway. It says 1 just plugs in & you turn it on & off when needed it is an ultra low energy bulb. The other 1 says its a sensor light that detects light levels automatically switching on at dusk & off at dawn. The remain cool to the touch & provide over 10,000 hours of light.