The Arcadia D3+ Reptile T5 Lamp 12% provides a high output and superior energy efficiency compared to older T8 models. Utilizing fluorescent tube technology, this lamp delivers essential UVB light, ideal for desert species requiring approximately 12% UVB. Arcadia Reptile D3 and D3+ T5 lamps are designed with animal health as a priority, offering some of the world's highest output T5 lamps in 6% and 12% UVB. Their UVB percentages are measured accurately after the initial 100 hours of use, ensuring you provide the best T5 technology for your reptiles. These lamps are effective for a full year, maintaining your animal's optimal condition. As full-spectrum lamps, they mimic sunlight, providing high color rendering for enhanced viewing of reptiles and their environment. The 6,500K color temperature replicates typical daylight conditions.