While Leopard Geckos don't need UVB to survive, UVA/UVB light has been shown to greatly improve the immune system, health, and wellness of all reptiles, both diurnal and crepuscular. ... Make sure to place the light over the side with the heat mat to help create that warm side of the thermal gradient.

How much UVB does a leopard gecko need?

Generally, 5 to 6% UVB lights are perfect for leopard geckos. It is best to get a made-for-reptiles UV light as they are designed to output controlled amounts of light and UV radiation. Most UV bulbs are fluorescents, though mercury vapor bulbs also emit UVB.

What kind of light does a gecko need?

Best Leopard Gecko Lighting Setups

Incandescent heat lamp as daylight. Ceramic bulb for nighttime heating, or a heating pad if your tank is too small. Red, blue, or black night light, which should be for a couple of hours while you want to watch your geckos (optional).