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Home > Articles > English > LED knowledge > What does LED Tube T5/T8/T12 mean?

LED knowledge

What does LED Tube T5/T8/T12 mean?
From: The Site Author: LIGHTUP LED DateTime: 2013-7-25

LED Tube T5, T8, T12, What does it mean? 

 

T stands for the diameter of the LED tube, and each T represents one-eighth inch.
 
T8, the most familiar LED tube to us, is one inch (eight times one-eighth inch) in diameter. As we all know, one inch equals 25.4mm. Therefore, the diameter of T8 is 25.4mm.
 
T12 means that the diameter of fluorescent tube is 12 / 8 inches.
 
T5 obviously means that the diameter of LED tubes is 0.625 inches.
 
  • T12 Diameter of 38.1 mm
  • T10 Diameter of 31.8 mm
  • T8 diameter of 25.4 mm
  • T5 diameter of 16 mm
  • T4 diameter of 12.7 mm 
 

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