Stem and Swivel Style Photocell | Features: Cadmium Sulfide Photocell, Polypropylene Housing With Uv Protection, 2400 Volt Open Type Spark Gap Arrester | Features: Long Life, Electronic Photocell, Zero-Cross Technology, Led Fixtures Totaling 1650 W @ 277 Vac, Fail Mode: On, Top Lens, Uv Stabilized | Flexible and Easy to Use Device That Allows the User to Control Lutron Wireless Load-Control Devices From Anywhere in the Space. Battery-Operated Control Requires No External Power or Communication Wiring. Provides Control for Caseta Wireless Controls, EneFurbay Electric Supp