today, actually, i went and picked up two new bubs. one 1000, one 600. based on my experiences with the eye, and ushio, which i think are good bulbs, i went back to my original choice, before these two. SUNMASTER. i think this light reporduces more "late autumn" orange spectrum. after i got the newer ushio, i tried using this on first half of flower, swapping out for the sunmaster for the last half. the ushio seems to bring out more final stretch, at least for me, and my streins...and, oddly, the sumaster is also more pleasant for me to be around, too. and yes. i was high. lol!!! on my 8 tube t-5, i use 6 6500k, and two 2700k. what a nice orange light my room will have starting in two hours. i paid 123.00, for both i got, with free ship one big one, and under 6. for the small one. so. i thought not a bad price. wish i had a light meter, so i could see the degredation of the lamps, therefor get the most out of each one. the exps, i have stated, are just mine. and are not intended to assume you have different ones. i think every single enviroment is different. none of us do it the same! except, hopefully, the pleasure of working with this neat plant!!