i couldnt tell you if the 126w is a better buy because i havent seen these plants flower yet. once i get into flowering i will be able to see what both ligths can realy do. the thing with getting two 90w instead of one 180w is the intensety of the light. if you need more foot print and money is tight then two 90w will work good for you. but i rather have one 180w IMOP
Looking good BRO.. Mine is finally kicking into gear.