Lighting and Ventilation
1,619 topics in this forum
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- 13 replies
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I was wondering if any of you experienced growers who have had plants on a 24hr day cycle could give me a little info.?? I have always had either a 16 or 18 hr. day cycle but have recently heard from an unrelieble source that a 24 hr cycle makes a big difference in the growth phase of a plant. Can anybody second this? I would think that a plant would need some sleeptime as well..... am i wrong?? thanks respect..
Last reply by lokm8, -
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i have a 400 watt HPS bulb and ballast combo. i got it from a friend, who had it rewired for some fucked up reason. there are three wires in the cord itself, red(which is disconnected), white and black. inside the ballast there are 3 or 4 wires that are not connected. the white and black wires are then attached to a two prong plug in. he said that the light worked in his dryer outlet. but i would like to rewire it RIGHT and get the full light.
Last reply by Tom, -
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Hi ozstoners, I have been growing for ages using 600 watt hps. A while ago I was given an 880 watt hps globe that runs off a 1000 watt mh ballast. The last few grows I have used the 600 as a veg lamp then switched up to the 880 globe to flower. I have always been under the impression (don't know how correct I am though) that hps was a better lamp for flowering due to the more orange light spectrum than mh. I am now wondering if it is worthwhile getting a 1000 watt mh light to flower with as I already have the ballast. Has anyone compared the results from the 880 hps side by side with a 1000 watt mh lamp? Also if I am running an 880 globe off a 1000 watt ballast is the b…
Last reply by Chev, -
Hey all i have started my seedlings off under 3 18w CF inside a 25lt bucket with a little fan to move air around so it dont get too warm (i dident think CF got as hot as thay did) thay are only an inch tall just starting to kick on, so question is how many CF would i need to veg my babys to to the point were i put under my 400w hsp for budding (and were can i get those 48w CF i have been hearing about as thay would be the ones i would like to get)i was thinking if i had say 5-6 24w CF for two plants to veg under dose this sound ok because starting seedlings from scrach under my 400w sun-t is costing me too bloody much money in power.
Last reply by white_cluster, -
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- 420 Crew
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hey all just wondering if any one has seen these lights it says 400w son are they any good for growing? cheers
Last reply by pipeman, -
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I guess this one is probably for experienced growers who have experimented with different light sources, or those who read a lot.. I am wondering about using fluros in the veg cycle. Will they give me as much light as hps(400's)? or will the plants growth be slower with fluros? I believe the best fluros to use are the tri-phosphor, is this correct? Is there a combo of fluros you can use? What are the advantages/disadvantages of using both. I know i am asking for a lot of info but have always used fluro to seed/root or clone and then hps to veg and flower. I realise the fluros dont make as much heat and cost shitloads less to run but is this their only advantages? I found …
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hi all, wondering if a 1000w bulb can be used in a nova shade .... i bought a secondhand 1000w bulb, ballast and the shade which is a "chinamans hat" as they guy called it but it kinda sux the bulb can only face downwards giving me alot less height and would prefer it going length ways. can i use a nova shade (i have one from my 400w) or what sort of shade can i use ? thnx
Last reply by Chronicon, -
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Just a few questions: What do ppl prefer vertical (eg chinabowl) or horizontal lamp (eg.lobay) and why? Any ideas on the dimensions of these lamps light coverage, is a vertical lamp a circular coverage and a horizontal lamp a more rectangular coverage if so what would be optimal for 400 (approx 8-10ftsq)or 600w (approx 10-12ftsq) son-t-agro (and is $205 a good price for a basic 600w son-t-agro light kit complete? source: nutriflo hydroponnics in Gosford NSW, and on the net) I am not sure about the strain but as a general rule of thumb what sort of distance would you put between two plants (minimum)? Thanks for all the indirect help from everybody that has contribut…
Last reply by Tom, -
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i was wondering how much it would cost to run a 400w hps (ballast) for 24hrs a day (monthly cost) thnx
Last reply by ozdaz, -
hey anyone experimented wid using strobes for supplemental lights? i had a couple of younguns under a 4ft growlux, spotlight n srtobe as well as underfiltered patio light during the day. overnute tho n they went all saggy ill b tryin again in a minute... anywayz. input badazz... oh btw, i read sumwhere that there wasnt a difference in growth habits wheterh the tube was cool white, warm white or growlux, is this tru, or what is the best combination coz i just use all growlux, first time usin random lights its usually a 400hps
Last reply by pipeman, -
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600w hps setup seems to cost more than 1000w hps setup. Why is this?
Last reply by jaikai, -
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I was wondering I have 4 foot wide by about 6 foot hight and 6 foot deep grow room I also have a sunsystem 3 comerical 1000 watt hps Is this ok. I keep it vented and airflowing into the room. What about the yield aswell 10 plants in rockwool in a ebb and flow system
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lighting worry 1 2
by KerMit- 18 replies
- 2.2k views
i finally bought my Son T aggro 400 watter a few days ago and plugged it in last night to test it. It didnt look strong at first but started to glow brighter and brighter and the globe turned orange. I was kinda worried it was gonna blow up or something, maybe it just looked bad coz i was stoned heh does that sound normal for one of those lights? i just wanna make sure before i set all up. also would they be too strong to germ under, its just that it will keep the seeds warm, the others i tried in water didnt germ probably due to the water getting cold i spose?
Last reply by Luke Skywalker, -
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check out this web page http://www.sunstreamer.com/ they make a claim that there light system that use 100watt can be a par with a 400wMH HID.
Last reply by Kash, -
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i was reading on a web page the other day about a new lamp that can flore plants under 18 hours of light on and 6 off. The lamp producers a certain spectrum of light that causes a hormone change in the plant, enabling the plant to flore for 18 hours straight per day Cutting flore time by almost half. Sounds like the shit -----> has anyone heard of such a product?
Last reply by Green finger,
