Dave Weldon posted on your other thread about the Metal Halide bulb. So go check that out. Yes, a reptisun 5.0 and a normal incandescent bulb would be great for day time. You should not use any night time bulb however. A hibiscus will need a plant light in the 6500k range, so you may want to consider getting one of those.
I would be able to help a little more if you told me what species you are looking to get.