WTB: 24" light for work tank

[Flash]

i am setting up a 25gl tank at work and i need a 24" light that will grow soft corals. the tank came with a single T8 bulb so i am looking for something better then that!!! i don't want to spend a whole lot as there will likely only be 2 damsels in the tank... don't need to be pretty, it will be hidden in the lid.