DoubleLux 4 12 BULB T5 Fluorescent Light Fixturebrbr DoubleLux T5s from DL Wholesale include twice as many High Output (HO) bulbs as traditional T5 fixtures, within the same footprint. Double the bulbs = double the lumen output.brbr The DoubleLux 4 12 bulb features a four foot long fixture with 12 HO bulbs: 12x Grow bulbs 6500K@54W(ea.) as well as 3 UL listed ballasts.brbr DoubleLux T5s run on 120v, include an 8 power cord, and are daisy chain capable. With 12 bulbs there are three operating modes available including: brbr Switch 1: 4 Bulbs ON = 216 Watts @2.02Ampsbr Switch 1+2: 8 Bulbs ON = 432 Watts @4.04Ampsbr Switch 1+2+3: 12 Bulbs ON = 648 Watts @6.06Ampsbr brbr Dimensions: 46″, x 18″, x 3