UPGRADED DESIGN: Temperature can be adjusted manually. It can keep reptile tank warm without any harm to your pets and also won’t disturb animals sleep pattern. Ideal for desert and tropical species of reptiles, amphibians and arachnids, our temperature adjustable heating pad provides a safe, comfortable atmosphere for tanks ranging from 10-40 gallons, all while maintaining high-quality composites, energy efficiency, and a design that is both flexible and foldable.