The Cool Tube Digital system comes complete with a 19 inch Cool Tube reflector, Phantom dimmable digital ballast and a regular HPS bulb. The 250W and 400W Phantom ballast don’t seem to be dimmable. Best the 600W and 1000W models are dimmable.
Great quality Hydrofarm product.
No want to worry about imported knockoffs, because all merchandise are subsidized by Hydrofarm’s manufacturer guaranty.
Ballast designed for vertical operation, coolest running and optimum grow area
Reflector has adjustable socket rings for quite a lot of positioning of bulbs inside tube
Comes complete with a 19″ air cooltube