Install a direct wire or ballast-bypass linear LED lamp. This type ignores the existing ballasts … (See product specification sheets for more information) Existing fixture is wired to bypass the ballast; Reduces energy use (vs type A) Eliminates the need to check ballast … Most T8 LED tubes do not need a ballast. overview. So, if you are going to install a T8 LED tube light, it will require a ballast bypass unless you choose a ballast compatible T8 LED tube. Convert your existing fluorescent fixture to LED technology with the Feit Electric T4819/LEDIF/41K 4ft. LED T8 Hybrid; LED T12 & T8 Plug & Play; LED T5 Bulbs. These versatile T12 LED bulbs come in various types: Ballast bypass: These are sometimes referred to as direct wire LED light bulbs. LED T5 Plug & Play; LED T5 Direct Wire; LED Filament Bulbs. What types of LED tubes are available? There are three types of T8 LED tubes: Type A: These are also known as ‘Plug and Play’ tube lights. SKU: T4819/LEDIF/41K Categories: Linear Fluorescent Replacements, Bulbs. 4 ft. T8/T12 4100K Ballast Bypass LED. Also available in Single Ended Ballast Bypass Configurations. They are compatible with linear fluorescent tube ballasts. We only recommend a ballast-bypass using double-ended LED … But read carefully, because there are safety concerns. T8/T12 LED … Right now, a ballast-bypass is our top LED replacement option for T12 fluorescent tubes. Frosted LED Filament Chandelier Bulb - Flame Tip; ... BALLAST BYPASS … Convert your existing linear fluorescent fixture to LED without needing a comprehensive reinstall. T12 to LED replacement options A.