You need to know the length of the tube and the diameter of it. Making the assumption it's for a general hallway/bathroom/kitchen/office it's likely to be a 6ft T8 or T12.
T8 tubes are 1" diameter and T12 are 1.5"
Thanks for your help. .
@Shoosh started
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You need to know the length of the tube and the diameter of it. Making the assumption it's for a general hallway/bathroom/kitchen/office it's likely to be a 6ft T8 or T12.
T8 tubes are 1" diameter and T12 are 1.5"