Complete newbie on types of lights for snakes

[cherrydee]

Hello ssnakess forum. I'm planning to buy a pet ball python from a friend but I'm really new and confused with the different types of lightings and heatings. What are uvb, red bulb, blue bulb, etc? I am living in east asia and i with that, i don't think my place will be too cold for thr snake. Usual temp from morning till afternoon is 32-33deg and 26-27 at night. Which lights do i need to buy? I'm planning to get one for the night since it gets colder. I heard it's red? Also, our kwh rate here is kinda high so I'm hoping there's one that's around 15w only? Will it suffice? Thanks!