This weather proof, energy saving CFL light bulb replaces a standard 100 watt bulb flood light. The design can be used both indoors and outdoors and is great for landscape accent lighting. This Green Par38 ecobulb uses only 20 watts of power and has an impressive average lifespan of 8,000 hours. Please note: do not use with dimming devices. One CFL bulb per pack. Price is for one CFL light bulb.