QTR T8 Instant Start Ballast is a QUICKTRONIC Residential ballast that brings all the energy saving features from standard commercial grade ballasts to an economical design acceptable for only residential fixtures These 120V ballasts comply with FCC Part 18 Consumer requirements ...QTR T8 Instant Start Ballast is a QUICKTRONIC Residential ballast that brings all the energy saving features from standard commercial grade ballasts to an economical design acceptable for only residential fixtures These 120V ballasts comply with FCC Part 18 Consumer requirements and are a perfect complement for ENERGY STAR rated fixtures QTR RES T8 is available in 2 and 4 lamp models in 120V to cover a wide range of applications QUICKTRONIC T8 4 -Bulb Residential Fluorescent light ballast in Black | QTR4X32T8120SCEBJ4