just put another 400 watter in there 34 days into 12/12

i did a bit of research n peeps say its ok to add more light half way through flower and seems i had a old 400 watt hps doin nowt, i av stood it on a chair as its in a built in ballast type box n just pointed it into my tent, so now there gettin hit from a 600 hps from above and a 400 hps pointing in the front door of the tent, temps levelled out at 84 so all good there !

is there anythink i am over looking here ?

or is ok to add the light ?

Rotate the plants every few days to keep growth even, watch the temps.

sounds good for more light.

when you get a chance take a pic of that 400 watt light. should be able to make it a remote ballast.

check out the link in my sig. about industrial lights.