link to said thread please very concerning i was planning on a 600 galaxy with hortilux bulbWhat kind of bulb you burning because if its hortilux,dont buy iether of these.Ive had gallaxys and lumiteck and niether burns the eyes.If you use cheap bulbs then these are good ballest.Im trying ushio bulbs in my lumiteck 600 now.It blows hortilux eyes in about two months.Lumiteck is saying hortilux lowered the quality of the bulb last year is what causing all the trouble.they have a huge thread on thc farmer and the owner of lumiteck is posting in the thread.Check that thread out before you spend your cash......................................................Peace......