light and seedlings

[damnwhatsmyname]

How far should i hang my 250 watt hps light over my seedlings?

 

[steve green]

i say like 12" to 18" to start then lower them after they get strong.
or use a couple of cfls to start them and then use the 250watt

 

[george j warner]

yer right lol ...er no

hang the 250watt about 70/100cm away (they say 140 if just out propagator)

seedlings are too young for HID lights.. 70 will be fine
btw a 250 and im used to these,, should be 12" away when flowering mature plants !

 

[steve green]

sorry damnwhatsmyname if u just have a 250 to start u should keep it atleast little bit over 2feet,,.... george j warner is right ,,i went brain dead for sec.i quickly underestimated the distance
thnx george i agree that Hid lighting is too strong for seedlings,,and u should start with cfl's if u can
gl

 

[george j warner]

tis cool man ,it happeneds to the best of us: ) , i just hope he didnt read it and burn the seeds rofl

 

[Guest]

Dang it George, they still allow you have pictures of handguns in Merry Old'e England?

I just couldn't help that one, forgive me roflmao.

Ty-Stik

 

[technogrow]

at what state could a hid be turned onto the seedlings?? 600watt hps

 

[Srgt.Stadenko]

Put the light as close as possible to get the maximum amount of light intensity. Use the back of your hand as a judge to figure were to put the light. If the light is to hot for your hand its to hot for the plants.

 

[namo420]

18" from a 400 is great for seedlings,for me anyways

 

[technogrow]

thanks very much for the posts. Ill be turning it on soon, ill just have to crank the ac down...