The D3 UV Basking lamp is a high performance lamp providing UVB, UVA visible light and heat from a single lamp. Designed as a basking lamp for larger vivaria in which the reptile has sufficient room to move into and out of the basking area to regulate its temperature. – Important for reptiles development and health – Aids the synthesis of Vitamin D3 – Helps prevent metabolic bone disease – Stimulates reproduction – Provides UVB, UVA visible light & Infrared (heat) energy from a single lamp – 50 degree beam angle for wide basking area – Average life 6,000 hours – No external ballast required – 1 year guarantee – Includes detailed instructions sheet Standard E27 screw fitting bulb.