Hykolity 20 Pack 4Ft Led T8 Ballast Bypass Type B Light Tube, 18W, 2400Lm For Single-Ended & Dual-Ended Connection, 5000K, Frost

? Ballast Bypass - The T8 led tube light is direct wire that are not ballast compatible. These tubes require the ballast to be disconnected and removed from the fixture prior to installation, just refer to the installation guide picture for details. · ? Single or Dual ended Connection - This 4ft led ballast bypass bulbs convenient for installation with a single-ended or double-ended connection. They work best for your garage, warehouse, or office storage areas, fabrication floors, retail spaces, hospitality. · ? High Quality - led 4 foot T8 led bulb uses high quality LEDs which are more energy saving and environmental protection (no UV, IR, or mercury). UL Listed for better quality, safety, reliability and have longer lifetime up to 50,000 hours than halogen/incandescent/fluorescent bulbs. · ? Shatterproof - These led t8 are designed with a frosted shatterproof film protected glass housing which allows for safe installation in fixtures, with or without wire guards.