Invest in the health of your desert-dwelling animals, or animals in larger habitats by using this high-quality, high-output combination. The 10.0 bulb provides higher UV indexes at similar distances to its 5.0 counterpart, projecting farther into a habitat. When used with the highly polished, curved reflector inside the ReptiSun® Terrarium Hood, it not only maximizes efficiency but maximizes UVB, UVA, and visible light delivered to your reptile. When seeking a reliable and trusted UVB and UVA source for your pet, offer the best product available, Zoo Med’s ReptiSun® T5 HO.