This four-inch Non-IC rated housing is suitable for new construction in residential and commercial applications and requires 3 spacing from insulation. Integral thermal guards protect against improper lamping and misuse of insulation materials with lamp wattage ratings and apertures based off trim selection. The airtight housing limits the exchange of air between ceiling plenum and heated/cooled areas. The housing adjusts from 1/2" to 1 1/2" to accommodate ceiling thickness and its 5 1/2" height allows it to be used in 2"x6" joist construction. For use with low voltage 20W - 50W MR-16 or JC type lamps.Input Voltage: 120VCertifications: cULus Damp Airtight Non-IC4" Universal Lo-Volt Airtight Housing Non-ICSuitable for new construction in residential or commerical applicationsUse low voltage 20W - 50W MR 16 or JC Type lamps (12V)Non-IC rated. Insulation must be kept a minimum of 3" from housingListed for through branch circuit wiring and includes several 3/4" knockoutsSupplied with three push in wire connectorsFour pryouts with integral strain relief simplify Romex installationHousing is secured to plaster frame with screws and can be removed for access to junction boxHeavy-gauge hanger bars provide greater stability, allowing housing to be positioned at any point within a 24" joist spanHOUSINGWashington State Energy Code approved to meet restricted airflow requirements.Airtight housing limits the exchange of air between ceiling plenum and heated/cooled areas.Transformer includes integral thermal protector guards against improper lamping and misuse of insulation materials.Use low voltage 20W - 50W MR-16 or JC type lamps (12V) (not included).Class H 50W transformer, step down from 120V to 12V.Use dimmers specifically designed for low voltage magnetic transformers.5 I/2" height allows use in 2"x6" joist construction.PLASTER FRAMEHousing adjusts from 1/2" to 1 1/2" to accommodate ceiling thickness.JUNCTION BOXListed for through branch circuit wiring and includes several 3/4" knockouts. Four pry-outs with integral strain relief simplify Romex installation.Supplied with three lDEAL@ push-in wire connectors.HANGER BARSHeavy-gauge NICOR captive hanger bars provide greater stability, allowing housing to be positioned at any point within a 24" joist span, then locked in place with set screws. Unique hanger bar lip design helps align can tojoist. Four double-headed captive nails provide for ease ofinstallation.Bars can be repositioned 90" on plaster frame without tools.Bars fit onto T-bar spine for quick alignment and can be permanently secured.Score lines allow bars to be shortened without tools to accommodate a 12" joist span.UL damp locationUL Feed-throughCUL