Housing:
Rated for direct burial in insulation
Black powder coated 20 Ga. cold rolled steel baseplate designed for bi-directional mounting of hanger bars
16" hanger bars supplied as standard
Approved for all ceiling types including air-handling plenums

Junction Box:
18 Ga. galvanized steel
5 K.O. around j-box to allow for easy wire entry
Approved for branch circuit wiring

Thermal Protection:
All housings have over lamping protection

Transformer:
Housing with standard magnetic transformers are rated to 50W max: Magnetic core and coil transformers are made with copper windings, class H rating (180°C): 120V, 277V, 347V primary available
Optional electronic transformer housings are available, 37W max: 120V, 277V primary available only,
Optional Q-Tran toroidal magnetic transformer housings are available, 50W max: 120V, 277V primary available only
Transformer is accessed through ceiling opening

Socket:
Low voltage MR16, 12V (lamp by others)
Porcelain Bi Pin socket type GX5.3

Air Tight (optional):
Air Tight housing performs in accordance with ASTM E283-91
Fixture meets requirement of " having no more than 2.0 CFM air movement from the conditioned space to the ceiling cavity" (section 502.4 of 1991 WSEC - Washington State Electrical Code)