Product Features: Includes energy saving photo cell to automatically shut off the light during the day Designed to cast light in a downward direction Requires (1) 100 watt Medium (E26) bulb Lamping Technology: Bulb Base - Medium (E26): The E26 (Edison 26mm), Medium Edison Screw, is the standard bulb used in 120-Volt applications in North America. E26 is the most common bulb type and is generally interchangeable with E27 bulbs. Compatible Bulb Types: Nearly all bulb types can be found for the E26 Medium Base, options include Incandescent, Fluorescent, LED, Halogen, and Xenon / Krypton. Dimensions: Height: 4.75" Width: 7" Depth: 4" Electrical Specifications: Bulb Base: Medium (E26) Number of Bulbs: 1 Watts Per Bulb: 100 Wattage: 100 Voltage: 120v Compliance: Dark Sky Lighting: Known as Cut Off Lighting, or Friendly Lighting, Dark Sky refers to lighting fixtures that reduce excess lighting and reduces sky glow to eliminate wasted energy allowing the night sky to shine. ADA Compliance - The Americans with Disabilities Act (ADA). Fixtures hung between 27" and 80" above the floor must have an extension of 4" or less; this applies to wall lights in walkways or halls. Ceiling Fixtures must be hung no lower than 80"?.