ushio or hortilux something else

I have got my best yields with the plant max bulbs and you can get them on eBay for 30 bucks . I change out my bulbs every 2 runs. Try a side by side and see if you notice any difference . I think I notice ballasts more than bulbs . My lumateks look better to the eye more blue than the quantoms both with same bulb
 
I use the digilux enhanced spectrum bulb in a 400 watt cooltube working great so far don't have a yield to compare It to but I researched pretty hard before I bought a new bulb and it was was highly rated for the price
 
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