Light up entryways and paths alongside your building for safe travel after dark. These lights are also known as wall packs. Mount them to outlet boxes on the exterior of your building.

These lights meet UL or ETL for wet locations. Lights rated IP65 are sealed to keep out dust and driving rain.

Styles A-E have a switch for selecting the light appearance. Connect them to your lighting control system or toggle the light sensor to automatically turn them on when it gets dark. Lights with a downcast beam are also known as full cut-off lights. Often installed above doors, they help reduce glare by aiming light down instead of toward your eyes.

Replace the U-shaped fluorescent bulbs in your fixture or upgrade to LED. These bulbs are often used in 2'×2' ceiling lights. Select a light appearance to match your existing lighting. Bulbs with more than one light appearance have a switch which allows you to match other lights in the room.

Fluorescent bulbs contain small amounts of mercury. For disposal information, visit www.epa.gov/cfl.

Replace high-intensity discharge (HID) lights with the longer-lasting, energy-efficient LEDs. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. LED lights are perceived as brighter at night than high-intensity discharge light technologies, so they require fewer lumens to provide the same brightness. Match your old light’s wattage to find the right LED bulb. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

Ballast bypass bulbs eliminate the need for a ballast, so the socket must be wired directly to the power source.

Pins on the base lock these bulbs into sockets to withstand vibration. They're often used in machines and elevators. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.

Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

2-way bulbs operate at two brightness levels, as in high- and low-beam headlights.