Abstract: A headlamp lighting device is provided that allows for the adjustment of the size of the light beam and forward heat dissipation. The lighting device includes a housing, a light source provided on the housing for generating a light beam, and an optical focus lens disposed in the path of the light beam for focusing the light beam. The lighting device also includes a lens ring supporting the optical focus lens to move the focus lens relative to the light source to adjust size of the light beam. The lens ring also serves as an outer heat sink in thermal conductive relationship with an inner heat sink.

Abstract: A headlamp lighting device is provided that allows for the adjustment of the size of the light beam and forward heat dissipation. The lighting device includes a housing, a light source provided on the housing for generating a light beam, and an optical focus lens disposed in the path of the light beam for focusing the light beam. The lighting device also includes a lens ring supporting the optical focus lens to move the focus lens relative to the light source to adjust size of the light beam. The lens ring also serves as an outer heat sink in thermal conductive relationship with an inner heat sink.

Abstract: A headlamp lighting device is provided that allows for the adjustment of the size of the light beam and forward heat dissipation. The lighting device includes a housing, a light source provided on the housing for generating a light beam, and an optical focus lens disposed in the path of the light beam for focusing the light beam. The lighting device also includes a lens ring supporting the optical focus lens to move the focus lens relative to the light source to adjust size of the light beam. The lens ring also serves as an outer heat sink in thermal conductive relationship with an inner heat sink.

Abstract: A battery powered electrical appliance (100) operates using batteries (406, 408) of more than one size and provides preparedness information (120) which may be used to assist in preparing for an emergency or otherwise obtaining desired supplies. The electrical appliance (100) may be employed to provide a first task illumination function, at least a first visible signaling function, and an audible signaling function.

Abstract: An intrinsically safe battery powered device (100) includes a housing (102), a battery receiving region (104), an intrinsically safe power supply (108, 110), and device electrical circuitry (112). The power supply (108, 110) uses energy from batteries (106) received in the batter receiving region (104) of the device (100) to power the circuitry (112). In one implementation, the power supply includes an intrinsically safe charge pump circuit.

Abstract: An intrinsically safe flashlight (100) includes a housing (100), a battery receiving region (108), an active electrical circuit (202), and a light source (118). The active electrical circuit (202) uses energy from batteries (110) received in the batter receiving region (110) of the flashlight (100) to power the light source (118). The electrical circuitry of the flashlight (110) is energy limited so that the flashlight is intrinsically safe for use in hazardous locations.

Abstract: A light device includes a body having a light source and electrical contacts that plug into a first electrical outlet of a duplex receptacle and receive power therefrom. An outlet cover mounted for pivotal motion with respect to the body about at a pivot axis, which is substantially proximate to a region between the first outlet and a second outlet of the receptacle. The outlet cover pivots away from the body and towards the duplex receptacle to inhibit access to the second electrical outlet.

Abstract: A lighting device includes one or more light sources, one or more switches, and a controller. The lighting device has multiple modes of operation. The controller selects modes of operation according to the one or more switches. The controller controls or operates the one or more light sources according to the selected mode of operation.