How long is your photo period

johnwin84 · Nov 6, 2007

So how many hours a day do you guy run you Mh Bulbs and how often do you change them out

barometer · Nov 6, 2007

I run an Iwasaki 14k 175w MH for 9 hrs and change the bulb once a year

timmay · Nov 6, 2007

I run dual 250w radiums for six hours 6pm to 12am. Change every 9 months

pookstreet · Nov 6, 2007

I run 250W Phoenix for 10 hours a day. Do I have to really have to change them out?

sandman450f · Nov 6, 2007

from what Ive heared nope.....

I just reduced my photo from 11hrs to 8hrs on phoenix 250 on e-ballast, from what others said should be able to get 12mo outta them

radiums on 8hrs hqi ballast should be in the 8 mo range

Proraptor · Nov 6, 2007

I run a single phoenix 9 hours a day and change it out in about 14 months...

therapy · Nov 6, 2007

I run 5 single ended 250 watt 14K Hamilton bulbs, with ice cap electronic ballasts. Photoperiod for 8 hours a day. I change bulbs about every 11 months.
Wow! My first post, but I have been a member since June. I better wake up.

Kenfuzed · Nov 6, 2007

I used to run them only 5 hours but had T5's running the rest of the day. Bulbs were changed every 11-12 months. Now I'm a T5 convert.

SDguy · Nov 6, 2007

I run my phoenix for 8 hours a day. I changed after 11 months. I'll wait longer next time.

zatoichi · Nov 19, 2007

We run an 8 hour cycle on the holding system and a 10 hour cycle on the display system. The benefit of the shorter cycle? Less algae & electricity use!

How long is your photo period

johnwin84

Premium Member

barometer

2

timmay

New member

pookstreet

New member

sandman450f

2

Proraptor

2

therapy

New member

Kenfuzed

2

SDguy

2

zatoichi

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