hanging 1000w hps under canopy

I have 1 question, would it help any if i hang a 1000w bulb it in the center of 20 plants. Will it freak the plants out by it coming on and going off with the cycle below.
Trying to achieve max bud below canopy.
i would run the light in the 12/12 cycle.
4.5 min on
10 min off
15a timer and dedicated outlet 15a breaker.
I believe it would have affect the bulb life but that does not matter

I am also running 7200w over the tops.

temp 74 degrees 45% h and 3 a/c at 42000 btu temp is no prob


ill post pics soon you'll see.

why would you have the lights turn on 4.5m on 10 off , why not keep the lights on 12/12 all the time?

ok i left that answer out the bulb itself get about 114 degrees on the glass. 4.5min it gets to 85 dont want to burn eveything blelow no room now to pull all the stems and leaves away from glass heat.

weird never heard of doing that lol
but if it works go nuts

ww im growing 20'' tall now waiting till 24'' then flower mon start flower cycle

ur guna have monsters

that won't work with the photo period of a short-day plant, which relies on a solid chunk of night in order to flower, which need a solid 12hr chunk of darkness. not sure about the other 12 hours though, imagine it wouldn't work though interested to know.

Yyes monsters there will be darkness 12/12 just adding a 1000w hps have an extra one laying around

Do you know how much of a power arc the lights pull when starting up? We are now running 2 400watt MH and a 1000 HPS for veg, and we have their "come on" times staggered a bit, to account for the huge power spike.

nexcare said:

Do you know how much of a power arc the lights pull when starting up? We are now running 2 400watt MH and a 1000 HPS for veg, and we have their "come on" times staggered a bit, to account for the huge power spike.

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Yeah power spiking might be an issue with a cycle like that. I have heard it takes more energy to power light bulbs on than to leave them on for some time.

dbo24242 said:

Yeah power spiking might be an issue with a cycle like that. I have heard it takes more energy to power light bulbs on than to leave them on for some time.

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Have you ever plugged in a light and it just wont quite get going? If you wait a minute and let the power cycle through the balast, and then plug it in, the power will sharply spike and then light your balast. If I ever move up to ~2500watts, I will have them kick on, with in 15-20 minutes timers. Sure 1 or 2 lights are off for an extra 30 minutes, but your power bill wont spike up an insance amount at the same time every day...

onehitwonder said:

i would run the light in the 12/12 cycle.
4.5 min on
10 min off
15a timer and dedicated outlet 15a breaker.
I believe it would have affect the bulb life but that does not matter

Click to expand...

Whether it's important to you or not, Mr Moneybags , you better believe that it'd affect the lamp life! HPS lighting should not be hot started. Unless in a fan-forced cooltube, 10 mins is not enough time to cool the bottle & socket to ambient temp. It is startups, even from cold (but especially hot), that cause the most wear on an HPS bottle.

I could see a time-to-fail of just a few months (or less) using the cycle you propose and I don't see the benefit from winking the lamp on and off. When you remove the source of light energy being thrown at the plants, any additional growth you get from that light energy would stop as well.

A better solution to poor bud development down low on tall plants is to just not grow tall plants! This is what SoG is all about; tailoring the plant to the foliar penetration ability of the lighting.

By flowering clones immediately after they have developed a good spray of roots, with zero veg time afforded between setting root and flowering, you get short plants, finishing about 30-40" tall depending on the size of the light.

Any branching which develops on the lower 1/3 of the plant gets pruned off in wks 1 & 3 of flowering. The small lower branches will only develop small, fluffy buds which are a pain to manicure. The extraneous branching also blocks airflow around the plants, encouraging powdery mildew and other nonsense.

With SoG, you naturally get smaller plants, so you just grow more plants. Each SoG plant only needs a 6-8" circle. However, the method eliminates small 'popcorn' buds, increasing the avg bud weight & density by putting all the foliar mass within the best coverage area of your HPS lights.

Make the plant suit the light instead of the other way around.