Before i start with my Q. I just wanna say save all the smart *** comments?

I just want a little reasurence in what i kno and get a little advice, but i have a nile monitor "about a foot long" but what lights are going to be best? watt wise n color like red light orr?? and should i use a heat pad? i get so much diffrent info jus im jus askin to see if somone has a lil advice , thanks