This is product manufacturers code KFT39T5HO/840 by Kosnic. If you need to contact us about this product, please quote our product reference of 2888.
This is a High Output 39w replacement T5 fluorescent tube. 4000K (cool white). High Output fluorescent tubes are sometimes called HO tubes. They are much brighter than standard fluorescent tubes of the same length.
The tube length is 849mm without pins and 860mm including pins.