InfraRed 250W Heat bulb suitable for creating a large heat-spot for larger adult tortoises, such as Redfoot tortoises. Species that are around 30 cm or larger would benefit from the increased size of their heat-spot to ensure effective basking. Of course, they should only be used in enclosed spaces with dimmer thermostats to prevent overheating and ideally with good clearance all around them. A metre square internal space would be ideal as provided in our Cosy Tortoises Giant All-Season Houses, or larger Natural Ground houses. E27 screw-fit bulb, 125 mm diameter, 177 mm length.