i have a universal lighting 1000 watt ballast hps i want to know can use any conversion bulb to make it mh and can i use any heavy duty socket with any bulb
I believe most are conversion bulbs are compatible but you'd have to check with the manufacturer of the ballast. If you are not going to veg too long it may not be worth it to get the MH and just stick with a good full spectrum HPS or Super HPS. Check out the Hortilux line of HPS bulbs. They have blue in them as well and produce great buds.
If I'm not mistaken I think you actually loose wattage by using a conversion bulb as well. I would recommend using an EYE Hortilux Super HPS bulbs. I've been using them for veg, flowering and for my mothers with success.