cheers, can i ask approximately how far away as i do not have a temperature guage to check? it says 2 inches in some books but i have the lamp about a foot away and the leaves still turn upwards. This must be for CFL lamps. Just an approximate because then i can alter slightly to test to see if the leaves do point upwards or not. Cheers LIP uve helped me out loads of times lol.

Cheers

Bob
bobbyhardcore Reviewed by bobbyhardcore on . HPS LAMPS I have a 400 watt hps lamp and wondered what is the ideal distance between the top of the plants to the lamp ? I cannot get my lamp very close to my plants as they curl upwars and i posted this on here and LIP said this was because of the heat. I don't want the plants to stretch so if anyone knows the ideal distance that would be much appreciated. Cheers Bob Rating: 5