Efficient Sunleaves VitaLUME T5 Fluorescent Bloom Tubes provide light
in the correct spectrum range to give plants exactly what they need to
produce abundant fruit and flowers. Each four-foot, 54W bloom tube
produces 4800 lumens at a color temp of 2900 K. These tubes serve as
replacements for the tubes in Pioneer fixtures but can also be used in
any T5 compatible four-foot fixture that will start a 54-watt tube.