100watt/150watt digital ballast

Is there such thing as a 100 or 150 watt digital ballast? Since all that I seem to find are from 400 watts upwards and I'd like to invest in a hid light in the future.

i've never seen anything less than 250. if you're going to go digital you might as well go for 250.

I don't know about "digital" ballasts for 100 or 150, but there are 100 and 150 watt ballasts. However it is harder to find the ballasts and the lights, and they are not much cheaper so I would go with cee on this on and get a 250 which are sold at a lot of places that have the 400+.