T5 LED tube with internal driver .        
Good choice for replacement of T5 flourescent tube.   
it could  install directly in old T5 lampholder without ballast.
High Brightness, could reach 100LM/W for whole lamp.

Model No.: HRS-IT5C20-C330E1M5
Length:   1449±1mm
Power:     20W
Input Voltage: AC200~264V 50~60Hz
LED:     SMD3528
Luminous Flux:
Clear Cover: 2040 LM
Milky Cover: 1830 LM
CCT:
Warm White: 2800~3300K
Netural White: 4000~4500K
Cold White: 5700~6500K
CRI:≥75Ra
Beam Angle: 120°
Life: 50,000Hours