Zoo Med T8 ReptiSun® 5.0 UVB Fluorescent Bulb

The Zoo Med ReptiSun® 5.0 UVB T8 Fluorescent Lamp is the award-winning, industry-standard UVB lamp trusted by reptile keepers, veterinarians, and zoos worldwide. With a 5% UVB output and full-spectrum lighting, it allows reptiles to naturally synthesize vitamin D3, helping to prevent or reverse Metabolic Bone Disease (MBD) and other common health issues. Effective up to 12″ (30 cm) from the lamp’s surface, the ReptiSun® 5.0 is ideal for turtles, tortoises, iguanas, bearded dragons, and all diurnal reptiles. Built in Germany with precision manufacturing, this lamp is long-lasting, reliable, and proven to deliver the UVB your reptiles need to thrive.

• Industry Standard – The original UVB lamp trusted for decades.

• 5% UVB Output – Provides the optimal UVB levels for vitamin D3 synthesis and calcium metabolism.

• Prevents MBD – Helps stop and reverse metabolic bone disease in captive reptiles.

• Effective Range – Provides usable UVB up to 12″ (30 cm).

• Full-Spectrum Lighting – Includes UVA output for natural reptile behaviors.

• Professional Grade – Used and recommended by zoos, veterinarians, and herpetologists.

• German-Made Quality – High standards for consistency, safety, and durability.

• Item Number | Bulb Size | Wattage

  • FS-18 | 18″ T8 | 15W

  • FS-24 | 24″ T8 | 17W

  • FS-36 | 36″ T8 | 25W

  • FS-48 | 48″ T8 | 32W

• Lamp Type | T8 Fluorescent UVB Lamp

• UVB Output | 5%

• Effective UVB Range | Up to 12″ (30 cm)

• Best For | Tropical reptiles and medium-size enclosures

• Warranty | 1 Year

• Contains Mercury | Manage in accordance with local disposal laws. Visit www.lamprecycle.org for details.