T5

T5 refers to those types of straight aquarium fluorescent lighting tubes which are five eighths of an inch (1.587 cm) in diameter and use a G5 bipin socket.

These tubes are typically more efficient and brighter than T8 tubes.

• You require a specific ballast unit to drive T5 tubes. You can not use a T8 ballast.

• Metric version is called T16

Links

• T5 on Wikipedia