LED T8 Tubes with Internal Driver (bypass Ballast) - Type B
Type B LED Tubes have an internal LED driver which allows them to bypass the existing fluorescent ballast in a fixture and wire directly to line voltage. This results in added energy savings as LED T8 tubes that run on a ballast are less efficient. Initial install takes more time as the ballast wiring needs to be cut out but long-term this will also result in maintenance savings as there is no need to replace a ballast unlike the Type A LED Tubes. There are more options with Type B LED Tubes, from dimming capability to various lengths. In addition to the sizes below, there are now 18 Inch Internal Driver LED Tubes.