My plants are "vegging now" I Use a MH 400w.I also use 5 T-5s.My area is 3x3=9x3000 = 27 lumens per sq ft.Total lumens w/ both on are @ 51,000 lumens.My lights are on for 18/6.If i turn my MH on for only 10 -12 hours per day and keep t-5s goin for 18,will the lack of lumens harm my plants for the few hours w/o MH?????????
Lumens
- Thread starter Luke
- Start date
FilthyFletch
Mr I Can Do That For Half
The T5s alone would be fine if they are the 4 footers and in the blue spectrum bulbs.The 400 watt light isnt really needed until flower but then you want hps red light for that stage. I use simple 4 foot T8 fixtures with 4 bulbs in them
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chunkymunkey33
Well-Known Member
that seems to be my problem.My T-5s are 2 foot@12000 lumens.W/MH=40000= @ 52000 lumen w/both are on ,but when my MH goes off my room consist of @ 12000 lumens.Now take it my MH is on for 10 hrs a day,while are on for 18 hrs.For those 8 hours,will lack of lumens hurt my plants????
My light cylcle is as follows.......Both MH & T-5s come on at 5am,MH goes off at 10am.T-5s are stil on.MH comes back on at 3pm and off again at 8pm.T-5s are shut off at 11pm.For those few hours w/o MH,will the lack of lumens hurt.The temp is around 77 degrees,while MH is off.Thanx for all who writes back.