i started mine off with a cpl of 2ft strip lights with reptile aquarium bulbs over them. They don`t give off anymore heat than usual fluro strip lights but i found the growth was very slow and i didnt think they would really do much for them once they got past the 1st few weeks of popping out of the soil so i discarded them.
I think them bulbs are ok for very early stages of seedling but that`s bout it.
Digi