how far away ?

smokintony

Active Member
new to this but want to know what the suggested height the lamp should be from the plants small grow room 1 1/2 metre squared room 600w sodium ?
 
new to this but want to know what the suggested height the lamp should be from the plants small grow room 1 1/2 metre squared room 600w sodium ?

after u hang the light, put ur hand over the top of your plant and see how it feels. if it feels okay, then you're good. if it feels too warm and uncomfortable, move it up a lil.
 
I agree w/ the hand method. or better yet use a thermometer. if you have a thermometer shoot for 75-70 degrees F. If you don't have one use the hand method. if you feel good heat off the light w/ you hand just above plants then it's too close. If you don't have a reflector & cooling duct fan hooked up then you should. because you will then be able to get your lights even close while keeping everything cool enuf & plants will recieve more lumens. you lose lumens over distance so the closer the better until heat becomes an issue. like i said b4 75 degrees is great. 90+ will kill. So just saying 3 feet without knowing what kinda cooling if any you have set up + the ambient air temp of the outside room & other factors Isn't good advice imho but @ the same time it is likely that 3 feet is a "safe" distance.
 
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