I need help with my tanlines?

a tan is from rays from the son or any other form like a lightbulb in a tanning bed, a flashlight is a normal light, if i were you just go to the pool all summer and maybe just put your feet in the water, because water gets more light have you wondered why you always get more tan why your in the water, well it reflects so your really just going to have to wait it out because if you use a self tanner your just going to have two different colors!