Best UVB Lights for Aquatic Turtles
UVB lighting is one of the most important parts of an aquatic turtle setup. A turtle can have clean water, a solid basking dock, and the right food, but it still needs proper UVB exposure to help support shell, bone, and calcium health. The best UVB light for your setup depends on the size of the tank, the width of the basking area, and how well the light reaches the spot where your turtle dries off and warms up.
Top UVB Light Picks
Generic linear UVB fixture illustration; this does not depict the linked Zoo Med model.
Zoo Med ReptiSun T5 HO 5.0, 14 in.
The current listing is a 14-inch T5 HO hood with a ReptiSun 5.0 UVB lamp. Confirm supplied components and follow current mounting and lamp-distance instructions. Plan basking heat separately.
- Compare the listed 14-inch hood
- Confirm included lamp and hood components
- Follow mounting and distance instructions
Generic linear UVB fixture illustration; this does not depict the linked Zoo Med model.
Zoo Med ReptiSun 5.0 T5 HO UVB Lamp, 22 in. (24 W)
Compare the listed 22-inch, 24-watt ReptiSun T5 HO 5.0 lamp with your enclosure and basking area. This listing is the lamp only, so it needs a compatible T5 HO fixture; check the current lamp and fixture instructions. Plan UVB exposure and basking heat separately.
- Compare the listed 22-inch lamp length
- Confirm a compatible T5 HO fixture
- Follow distance and mounting instructions
Generic compact fluorescent lamp illustration; this does not depict the linked Zoo Med model.
Zoo Med ReptiSun Tropical Compact UVB Lamp, 26 W
Compare the listed 26-watt compact fluorescent UVB lamp with a compatible fixture. Check the lamp's socket, mounting, distance and replacement instructions. This listing is a lamp; plan basking heat separately.
- Confirm socket and fixture compatibility
- Check the current lamp instructions
- Plan basking heat separately
How to Choose a UVB Light for an Aquatic Turtle
Choose a compatible lamp and fixture, then follow the current instructions for mounting, distance and replacement. Check the setup against your turtle's actual basking area. Fixture length alone does not establish adequate UVB exposure; plan basking heat separately.
UVB lighting does not replace a heat lamp. Most aquatic turtle setups need both: UVB for vitamin D3 and calcium support, and a heat lamp to create a warm basking area.
- Place UVB over the basking dock: The light should reach the area where your turtle actually sits.
- Avoid glass or plastic barriers: UVB should not be blocked before it reaches the turtle.
- Check the basking area: Compare the actual lamp and fixture instructions with your turtle's basking position.
- Replace bulbs on schedule: UVB output can weaken over time, even if the bulb still turns on.
- Follow the bulb instructions: Distance, fixture type, and replacement timing can vary by bulb.
Guide Access
Aquatic Turtle Filtration Guide
Best Canister Filters for Aquatic Turtles
Compare strong filtration options for turtle tanks that deal with heavy waste, leftover food, and cloudy water.
Open guideAquatic Turtle Tank Setup Guide
Learn the basic tank setup pieces aquatic turtles need, including space, basking, filtration, heat, and lighting.
Open guideBest Basking Platforms for Aquatic Turtles
Find basking dock options that give aquatic turtles a dry place to climb out, warm up, and rest under their lights.
Open guideFinal Take
Compare the linked 14-inch hood and its included lamp with your actual enclosure. Confirm package contents, compatibility, installation distance and replacement instructions before buying. Plan basking heat separately.
Zoo Med ReptiSun T5 HO 5.0, 14 in. — Check price on Amazon