T34 - 1 foot x 4 foot - Field Adjustable LED Panel - Finish: White - 20 Watt/30 Watt/40 Watt - 120 Volt-277 Volt - 3500K/4000K/5000K - 50,000 Hours LED Lifespan - Dimming Driver: Driver includes dimming control wiring for 0-10 Volt dimming systems, Requires separate 0-10 Volt DC dimming circuit. Dims down to 10% - Lens: Frosted polystyrene - Housing: Plastic frame & galvanized steel back housing - Mounting: Recessed into T-grid ceiling, Surface and recessed mounting kits available for drywall ceilings - UL Listed: Suitable for damp locations - IC Rated: Suitable for direct contact with insulation - CCEA Compliant - Equivalent to (2) F32T8 or (2) F28T5