indeed most area still use 100 watts hps but in cities it can varis from 100 to much as 400 but some case i see use a thousand watt bulb (1,000w) bulbs but right now few area in cities are staring to switch over to metal halide now but with new one comming out is pulse start mh i personally like them they do kick more light than old mh type and as far for old mercury vapour light that about complite history expect for privte owned fixures and flourest light it is mixed bag here but flourscent light is not too wonderfull in northen state due cold weather

merci marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)