Call or e-mail HTG. They had a period a ways back where they send out digital ballasts with bulbs that were incompatible. Most bulbs died in days or weeks, but maybe yours lasted longer with the 2-month grow. Either way, HTG should ship you a replacement.
gainesvillegreen Reviewed by gainesvillegreen on . Crap! I built a hydro unit, and now my Cooltube won't ignite Crap! I built a hydro unit, and now my Cooltube won't ignite. It's all set up...pump in bag, heater, airstone, netpots with Hydroton, and drip spikes. Darn! I have Blueberry seedlings ready to go in the rockwool, into the hydroton and get going. I only used my Cooltube for one grow, about 2 months; could it already need a new bulb? It flashes every now and then, like it's trying to start. Any ideas? :( Ldy Rating: 5