Direct wire or Ballast bypass T8 LED tube lights are for installation in LED ready fixtures and fluorescent fixtures operating directly on 120-277 Volts. Single-ended power LED tubes require non-shunted sockets, while double-ended power T8 tubes use shunted or non-shunted sockets for retrofit applications.
Kelvin (K) is a measure of how warm (yellow) or cool (blue) the color output of a fixture. T8 tubes with a warm color temperature in the 3000-3500K range are recommended for reception rooms, lobbies, and other locations where an inviting atmosphere is desired. LED tube lights with a cooler color temperature range from 4000-5000 Kelvin. These lights create a crisp and clean look for office buildings, classrooms, hospitals, and industrial spaces.
When to Use Single vs. Double-ended Power
- Single-ended power LED tubes: LED ready fixtures, fluorescent fixtures after removing the ballast and rewiring for non-shunted sockets
- Double-ended power LED tubes: LED ready fixtures, fluorescent fixtures with shunted sockets after removing the ballast, optional rewiring for non-shunted sockets
LED ready fixtures use non-shunted sockets and do not have a ballast, so all you need to do to install single-ended power LED tubes is to plug them in. When retrofitting a fluorescent fixture with LED tubes, you have three options. You can remove the ballast and use double-ended power LED tubes with the existing shunted sockets or rewire for non-shunted sockets to use single-ended or double-ended power tubes. Or to avoid any rewiring, call 1-800-624-4488 and ask about ballast compatible or hybrid LED tubes that plug and play into your fluorescent fixture and run with the existing ballast still in place.