are you referring to the warm-up time? if so ~5 minutes or so.

did they check the bulb on a lumatek ballast?

what brand bulb was it? there is known issues with some hortilux bulbs, specifically the Hortilux blue MH and the 1000W lumatek ballasts.


-shake
headshake Reviewed by headshake on . Burn-in period for Hortilux MH? How long does it take to "burn-in" a Hortilux 1000w MH? I haven't seen anything about this before and now my plants are left in the dark...literally Rating: 5