I am carrying a new line of UL rated ballasts these bad boys are approved for industrial commercial use and that is who this line is marketed to large greenhouses and agricultural wharehouses. compact and lightweight runs cooler delivers up to 20% more limens, silent with a 3 year warranty you choose 120v or 240v These units have a higher price point but have bragging rights over Lumatek that holds no UL stamp or Galaxy that I have been told does not have the UL rating but if you have a galaxy double check that and if I am wrong please let me know.