fugaziebob
Active Member
How far should a 1000 watt hps be away from my plants
How far
- Thread starter fugaziebob
- Start date
torontoone
Well-Known Member
Lotsa factors involved here ...
From the FAQ on Lighting on this site.
How far away from my plants do the lights go?
The lights in your grow room should be as close as possible to the plants without burning them. There is no such thing as too much, unless there is sufficient heat to dry out and burn the leaves. A good rule is to put your hand under the light, if its too hot for your hand, chances are that the plants will be too, so move the light up until your hand feels more comfortable. For seedlings and clones, I keep them a little further away from the light, because they are very susceptible to burning and drying out, at these stages.
Efficiency is very important when choosing a type of light. The wattage is not the most important thing, as you can see below, different types of light produce different amounts of lumens per watt. A 300 watt incandescent will produce about 5100 lumens. While a 300 watt Metal Halide (just an example, they do not come in 300 watts), will produce 27,000 lumens. Obviously far more efficient for growing, while still using the same amount of electricity.
From the FAQ on Lighting on this site.
How far away from my plants do the lights go?
The lights in your grow room should be as close as possible to the plants without burning them. There is no such thing as too much, unless there is sufficient heat to dry out and burn the leaves. A good rule is to put your hand under the light, if its too hot for your hand, chances are that the plants will be too, so move the light up until your hand feels more comfortable. For seedlings and clones, I keep them a little further away from the light, because they are very susceptible to burning and drying out, at these stages.
Efficiency is very important when choosing a type of light. The wattage is not the most important thing, as you can see below, different types of light produce different amounts of lumens per watt. A 300 watt incandescent will produce about 5100 lumens. While a 300 watt Metal Halide (just an example, they do not come in 300 watts), will produce 27,000 lumens. Obviously far more efficient for growing, while still using the same amount of electricity.
tyke1973
Well-Known Member
Has close has possible if you have a 1000 watt light then you are gonna need the air exstaction to back your lightihg up or you are gonna have serious heat issues,if you don't have an exstraction fan then you can get away with putting 2 fans faceing each other just under the light.it all realy depends on the size of your room,i had a 1000hps and i struggled in the summer winter was fine but summer it was a constant fight with heat.so i 4 250hps this also allowed me to grow far more plants than 1 1000hps.if the grow room is well aireated a good exstraction unit and a couple of fans you should be ok.
fugaziebob
Active Member
I have 8 plants and the closer i get the light it seems like it wouldn't get the plants that are on the outside I don't know I have had my hood about 8-10m inches away but I just wanted to make sure that that was about right. My ventilation is good, right now I don't have the fans hooked up to pull out the heat from the lamp but once it gets hotter and thats a issue I hook up my fans and exhaust tubing.