When you veg with a mh what is the best light schedule? Also how much is it going to raise my power bill with one 600w lamp?
18-24 hours on time for veg. I prefer 24, but it's a preference. I pay about $32/month, it depends on your electricity rate of course.
600 watts on 24/0, per month is 720 hours. 720 hours multiply by 0.600 kilowatts is 432 kWh If you were getting charged £0.14 per kWh (which I am) it will cost £60.48 per month.