Lighting and Ventilation
1,619 topics in this forum
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Hey all just got going with my first grow i have my temp at around 30 is that ok and with my seedlings how far should far away from the light should i have them i am useing a 400w hsp the seedlings are 4 days old any help would be great thanx all ozmade
Last reply by Tom, -
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hi all i hope u r all doing well,was hopeing someone out there has a bit of electricle knowledge for i want to no if it is possible to split a 600w hps ballast and add a second plug and then run 2 250w globes only drawing 500w..is this possible if so how to do it?? and if not where can i get hold of a luca 250w ballast??in oz cheers all W.S
Last reply by WhiteSkunk, -
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I have a 400W Son-T in a 390x870 cabinet. That works out to over 100W/square foot, and I am using this for veg as well as flowering (if I can keep my plants alive) As long as you keep temps under control can having this much light be counter productive?
Last reply by pipeman, -
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Hi folks. I haven't done any growing for about 3 years, and am starting to get a little eager again. Whilst searching various sites and looking at the grossly overpriced 'kits' these people are selling, I came across a kit using "Agro flouro gro lamps". The 6 lights are claimed to put out 36000 lux, compared to 56000 lux from a 400w. Have grown clones under flouro's but has anyone grown anything full cycle with these lights??? Thanks.
Last reply by whynot, -
hey all i just got my self a 400hsp what is the max area it can be used in and how many plants bong on aussie bong on ozmade
Last reply by Tom, -
how many 70w globes will i need in an area of 1meter square by 2meters high bong on aussie bong on ozmade
Last reply by nouseforaname, -
were is the best place to get these 70w HPS globes and with all the stuff to run it can i go to any lighting store and how much thay are worth thanks bong on all ozmade
Last reply by nouseforaname, -
interupted night
by Guest elefunk_delivers- 5 replies
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sup ppls... i was wondering.. is my plant majory effect if the dark period interupted.. i know its not good.. but like how often and for how long is the door to b open at a minimum.. without stressing the plant.. i ask this because door.. was accidently opened for aproxx 5 mins on the weekend.. but it was within dark surroundings... much respect Ele i hope santa didint hold back on any1 this xmas.. i know hes working wonders for me on the flowering side... 3 months of budding i think should make me a happy juggler big ups.. Evan,Stonedas,Boe
Last reply by sols, -
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HI ALL i was at a second hand store the other day and i bought a fluro light for vegging my plants. The light has 4x2foot fluro tubes im planning on building or buying a box for vegging and this is the light i want to use. What area would this cover? im only using it to grow clones to a foot tall. also how many watts are 1 foot tubes (18watts) ?? and would you recomend replacing some of the tubes so they arent all cool white. Thanx to anyone who helps me out ClosetCultivator
Last reply by ozdazz, -
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Anyone know if heat shields are any good? Do they help increase yield at all or are they just a gimmick?
Last reply by GreenAlchemy, -
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I had 2no 20W compact fluoros in each of my cupboards and decided to add an extra one, but I bought a different type, it was a 18W General Electric brand. The 20W ones say they are "natural White" and give off a very white light. However the ones I just bought give off a much more yellow/orange coloured light, and the packet doesn't give any clues about what type of light it is. anyone know whether there is much difference or which type is better?
Last reply by sols, -
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a usefil bit of information I stumbled across, irrespective of useable spectrum it highlights why HPS is best for flowering, MH or fluoro for veg and everything else is relatively useless... Here's a crude but useful table of lumens per watt for various light types: Avg Type LPW High Low HPS & Agro 123 150 106 Metal Halide 96 125 86 Fluorescent 80 100 20 Mercury Vapor 56 60 41 Incandescent 13 18 10 ------------------------------------------- HPS = high-pressure sodium Agro = Son Agro brand
Last reply by sols, -
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I have a contractor doing some work at my place tomorrow and they will cut the power for an hour or so, during this time it will shut the lights out in my grow box, will this have negative effects on my grow? Thanks
Last reply by sols, -
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hey im a first grower, My grow box has five plants in a cubord lined with silver alfoil, lighting is two fluros and since they have been seeds i have had the lights on 24/7. That was about a month ago and at the moment the plants are growing fine nice and green and very healthy. A few people have been telling me that i should have 12/12 lighting for various reasons. Am i doing the wrong thing (they look fine @ the moment tho =/) Advice and info for a n00b would be great. Cheers
Last reply by elessar, -
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Due to the lack of space in my growing area i was forced to have my (2 x 9watt) fluros about 8 cm above the soil. this caused my seedlings to grow quite tall very quickly and now they have weak as stems. despite the weakness of my lights they are growing okay now (i think).. one has 2 4cm leaves 2 2cm leaves 4 1 cm leaves and another 2 0.5 cm leaves. (this seems a decent amount of growth for <2weeks). However when i spray water on them they lean over. i been blowing on them pretty hard to simulate wind but is there any better way to strengthen the stems?? Pete
Last reply by boe~pimp,