Some manufacturers have recognized the opportunity to provide LED tube lights that work with Electronic Ballasts (T8) or have the ability to bypass ballasts when the ballast no longer works. This has given rise to a new category, the hybrid tube light. Hybrid tubes work with T8 electronic ballasts but can also be wired directly like a ballast bypass tube light should the ballast fail or if a facility has a mixed environment with T8 and T12 that require both wiring types. This is an advantage for mixed type facilities because the same tube light can be used with a quicker implementation time. Hybrid tubes also allow for the tube light to quickly bypass the ballast if the ballast fails due to their dual operating nature. The primary downside to hybrid tubes are their higher cost and in some cases lower efficiency versus ballast bypass options.