friend for the same price (pretty much) you can go 400 wt you will be sorry later that you didnt. you have ventalation to support the heat which insnt much more than the 250wt. also consider using a hps ballest. because there is a conversion lamp for mh application with hps ballest. you can have the best of both worlds.please consider this my friend. trust me youle thank me when your ship comes in lmao.
later
ps dont forget the other best friend, your cfls. best damn investment i ever made. i believe.