All Reptiles are cold blooded and therefore thier Reptile enclosure requires some form of heating. This is normally done through the use of Reptile Heat Lights or Reptile Heat Mats. Heat rocks are not recomended as they can become quite hot and being that they are in direct contact with your reptile can burn the skin. Heat bulbs and mats vary in wattage. The higher the wattage the more heat produced. Keep in mind you are not trying to heat the whole reptile enclosure just a section of the enclosure. A basking shelf or branch 15 to 30cm from your heat light is an easy solution. Fix your light to one side of the reptile enclosure This will allow a cooler spot in your enclosure. Always use heat light cages for snakes or if you think that your lizard will come into contact with the bulb.
UV Lighting
UV lights replicate the suns ultra violet rays and are essential for most lizards and some snakes. Most snakes do not require so research or ask first. I can not enthesis enough how important Reptile UV Lights are for reptiles that require and depend on the sun for vitamin D. These bulbs have a few different UV ratings and are designed for use with different reptiles. If you can expose your reptile to natural sunlight for a few hours a day you will save money on electricity and have a lot healthier and stronger reptile. 1 hour of natural sunlight is roughly equivalent to 7 hours under UVB bulb. Be vary weary of what you put your reptile in outside. Glass and plastic tubs with inadequate ventilation can quickly form an oven and cook you reptile in minutes.
All Reptiles are cold blooded and therefore thier 
UV lights replicate the suns ultra violet rays and are essential for most lizards and some snakes. Most snakes do not require so research or ask first. I can not enthesis enough how important Reptile UV Lights are for reptiles that require and depend on the sun for vitamin D. These bulbs have a few different UV ratings and are designed for use with different reptiles. If you can expose your reptile to natural sunlight for a few hours a day you will save money on electricity and have a lot healthier and stronger reptile. 1 hour of natural sunlight is roughly equivalent to 7 hours under UVB bulb. Be vary weary of what you put your reptile in outside. Glass and plastic tubs with inadequate ventilation can quickly form an oven and cook you reptile in minutes.