, Feed:Single-Feed, Wattage:150 Watt Maximum, Finish:Black, Compatibility:Compatible w/ 3' Standoff, Voltage:120v IN/12v OUT Tech Lighting Magnetic MonoRail Surface TransformerConverts line voltage to low voltage (see options)Mounts to a standard 4' junction boxIncludes an integral power feedCompatible with 600w magnetic dimmers (1000w dimmer for 600w models)LED Tech Lighting Element Compatible (except 300w and 600w Single Feed models)Compatible dimming coil included on models 150w and higherNote: Each wattage has a specific minimum drop; please be careful to purchase a compatible standoff (sold separately). Transformer must be placed directly over the monorail system. Power Extenders (for longer drops) and plug-in cord sold separately; see accessories. Black and White finish options feature Satin Nickel feeds.