Light Overkill?
- Thread starter Harrekin
- Start date
ontariogrower
Well-Known Member
most likey yes a 600 is good for a 4x4 room what you can do is useing a smaller bulb but turn it sideways alot of people have there bulbs vertical and loose a lots of light
kevin murphy
New Member
looks sound to me pal... 12-16 inch right lad..just chopped the first one of mine today auto demios it came out better than i thought lol..page 272 pal..keep up the good work lad get some pics on ..
BeaverHuntr
Well-Known Member
No such thing as too much light as light = food for the plant. As long as temperature isnt a issue and you are cooling your lights then rock on !! I use a 1000W HPS in my 10' x 10' x 8' high grow room.
DrtyBngWtr
Active Member
So your using at least half the light you should be using.
BeaverHuntr
Well-Known Member
I didnt say my 10' x 10' room was filled with plants. I have about 6 plants under the light. Its probably a pod thats about 5' x 2' wide.
I dont know if I understood your question..
queenster
Active Member
im using 2 1000 watt lights and a 600 watt in a 6 x 10 room and keep my room right at 81 deg. far. and never have a prob. and i got friends that use 6 1000 watts in a 10 x 10 room and love it. and if your using 1 1000 watt in a 10x10 room weather it is full or not your still losing light to room size and not getting the most out of your room either.
MJH54321
Well-Known Member
cary schellie
Active Member
i was wondering about that, so a 600 in a cool tube would be best in a stadium set up?
Harrekin
Well-Known Member
They didnt at all, Iv seen most of them. Im asking whats the most light I can use in a small space before reaching diminishing returns. Doesnt the plant have a light saturation point?
MJH54321
Well-Known Member
I dont know why your so bothered about it, if your plant looks ok, your temps are fine and your not bothered about electric bills then just use the 600watt, save you having to go spending more money and a smaller bulb and ballast.
old rule of thumb is 50-100 watts per square foot. many will argue this & I have done ok w/ only 33 watts per sq b4. adding light over 100 watts per sq ft will still help the plants but your return on your investment drops off. ie; jumping from 50 watts to 80 will increase your yeild by say 20% but jumping from 100 to 130 will only increase your yeild about 7%.
just guessing on percentages to give you an idea what I mean.
as for light saturation,extreme light 3-400 watts per sq will start to bleach the plants.
and someone could jump in and argue that watts per sq foot is an inaccurate way to measure light. lumens are better but when talking about HPS or MH,(& assuming the lights are proper height) watts per sq ft give you a good ballpark idea & are close enough for all but the most anal retentive.
Harrekin
Well-Known Member
Thanks for that man,specificially about the diminishing returns.old rule of thumb is 50-100 watts per square foot. many will argue this & I have done ok w/ only 33 watts per sq b4. adding light over 100 watts per sq ft will still help the plants but your return on your investment drops off. ie; jumping from 50 watts to 80 will increase your yeild by say 20% but jumping from 100 to 130 will only increase your yeild about 7%.
just guessing on percentages to give you an idea what I mean.
as for light saturation,extreme light 3-400 watts per sq will start to bleach the plants.
and someone could jump in and argue that watts per sq foot is an inaccurate way to measure light. lumens are better but when talking about HPS or MH,(& assuming the lights are proper height) watts per sq ft give you a good ballpark idea & are close enough for all but the most anal retentive.