The Cool Tube Digital system comes complete with a 19 inch Cool Tube reflector, Phantom dimmable digital ballast and a normal HPS bulb. The 250W and 400W Phantom ballast aren’t dimmable. Handiest the 600W and 1000W models are dimmable.
Great quality Hydrofarm product.
No wish to worry about imported knockoffs, because all merchandise are sponsored by Hydrofarm’s manufacturer warranty.
Design permits you to position your lamp very as regards to your plants
Ballast features silent operation, lightweight design, a couple of placement options
Triple surface aluminum fins makes this the best cooling in its class