The Arcadia Reptile D3+ 10% UV-B Compact Bulb uses a standard E27 screw thread and can be used in any appropriate lamp holder. The Arcadia Reptile D3+ 10% UV-B Compact Bulb uses just 23 Watts to create a wide flood of energy rich light. Suitable for smaller enclosures with species that require higher UV-B exposure, such as hatchling Agamas. Can be used with the Arcadia Reflector Clamp Lamp range which will maximise usable UV-B output. Compact bulbs are High output and flicker free. - High light output - Produces excellent Natural Colours