They will be fine for a while if you keep them in small pots close together less than 2' from the light. Bunch them up like SOG, but make sure that under the canopy there's good air circulation so you don't get rot.
Here's a pic of what I use my extra MH 250 for... it's about 18" from the canopy, and illuminates 9 plants in 1 litre pots - the plants are from 10-16 inches tall and the taller ones get bent over a bit so the low leaves get more light.
stinkyattic Reviewed by stinkyattic on . stinkHow long ? Hello growers.. right I have just been told that i have 20 clones on their way. Thing is am not ready for em for at leat 2 weeks coz am still flowering. I have a spare 250 MH lamp bulb ect. Would this lamp be Ok to keep the little ones veg'in until am ready.? How long would they live on this sort of light ? many thanks ET Rating: 5