This is a low voltage outdoor rated transformer. Typically used for landscape lighting, pool lighting and hot tub lighting. This is a top tier very high quality product retailing @ over $500 and is 100% functional as new. Even the low quality knock off brands cost a minimum of $150 and thats with less features and inferior components so at $80 this item is priced to sell! These Stainless Steel units have extra large low voltage output terminals and flip down wiring compartment access Enclosed Wiring Terminals, Conduit Ready Up to 300Watts Timer, Photocell, Remote Photocell Option MTP – MultiTap Professional A landscape lighting transformer with multiple voltage output. 11 – 15 volts is provided in 300 watt size. Output voltages over 12V are provided to help reduce voltage drop and increase lamp brilliance. Enclosure is rain-tight with hinged lockable cover and up to five 1/2”, 3/4″, 1-1/4″, and 2″ double knockouts — bottom and side entry. Features include removable timer, and field installed photocell. Made in U.S.A. MTP Transformer Features: 300 Watt Single Circuit. NEMA style rain-tight keyhole mount enclosure, type 304 stainless steel construction. Wiring compartment with input and output terminals Complete wiring instructions Timer, 24-hour removable Field installed or remote photocell option 6’ outdoor line cord Low voltage circuit breaker. One breaker protecting each output circuit  ALL STAINLESS STEEL ENCLOSUREDIMENSIONSMTP30014″H x 6.5″W x 5.5″DMTP600 – MTP120017″H x 9″W x MULTITAP PROFESSIONAL LANDSCAPE LIGHTING TRANSFORMERS MODEL NUMBER DESCRIPTION MTP30011-15 Volt, 300 Watt, Single Circuit