Portor’s 4′ T8 Bypass B tube is designed to work without traditional electrical ballasts. Our Bypass tubes are constructed to be single-ended or double-ended, so customers don’t need to worry about existing wiring schemes. Available in 4′ and featuring color selectable technology that lets the user choose between 3000K, 3500K, 4000K, 5000K, or 6500K.
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