lighting dummie, help please

[nanoreefer]

ok iam making a 2.5 reef tank for some zoos,shrooms ect i was going to use a 20w coralife screw in light but aparently they arent the best and there about $20 at big als, so i was going to go with two 9w or 13w PCs in DIY hood but iam not sure ware to get the soccets(or watever they fit into)for them in the lower mainland(i tryed homedepoe today)and iam not that sure how to wire them up ect(my grampa knows some stuff on it thoe)dos anyone know ware i can get them around me? or could direct me to a site for the lighting/electronicaly chalenged?

thanks!