Choose a UVB lamp for a reptile based on the animal’s species, the distance to its basking spot, and the terrarium’s design. Position it so your pet can get UVB and move into the shade when needed.
There is no single lamp that suits every reptile: UV requirements depend on the species and its living conditions. When choosing a lamp, follow recommendations for your particular animal, and after installing it, make sure there is no glass or plastic between the lamp and your pet.
This article explains how to choose a UVB lamp, where to place it, and when to replace it. Lifespans vary by lamp type, so follow the manufacturer’s instructions rather than relying on whether the lamp still lights up.
| Conditions or distance | Model | Usage recommendation |
|---|---|---|
| Tropical and subtropical animals | Exo Terra Reptile UVB 100 | Install correctly; run for 10-12 hours daily |
| Desert animals | Exo Terra Reptile UVB 150 | Choose according to living conditions |
| Animal is more than 30 cm away | Exo Terra Reptile UVB 200 | Recommended at this distance |
- 10-12 hours daily operating schedule for Exo Terra Reptile UVB 100
- 30 см distance to the animal beyond which Exo Terra Reptile UVB 200 is recommended
- от 14-ти до 701-ти Вт tubular UV lamp wattage in elemor.ru’s recommendation
Why do reptiles need UVB?
Reptiles need UVB to absorb calcium from their food more efficiently, which makes a UV light an important part of terrarium lighting.
Elemor.ru states that exposure to UV rays helps reptiles absorb calcium from food more efficiently. If there is no UV light in the terrarium, this negatively affects its inhabitants.
A lamp’s visible glow does not show how much UVB it emits: brightness alone cannot indicate its UV output. When choosing and installing a light, check its UVB specifications rather than judging by how bright it looks.
How do you choose the right UVB level for your setup?
Choose a UVB level based on your reptile’s living conditions and the distance from the lamp to the animal: Exo Terra Reptile UVB 100 is suitable for tropical and subtropical species, Exo Terra Reptile UVB 150 for desert species, and Exo Terra Reptile UVB 200 is recommended when the distance is more than 30 cm.
- Tropical and subtropical habitats: Exo Terra Reptile UVB 100 is suitable when installed correctly and run for 10-12 hours daily.
- Desert conditions: Exo Terra Reptile UVB 150 is recommended for these animals.
- Distance greater than 30 cm: Exo Terra Reptile UVB 200 is recommended.
Elemor.ru names a tubular UV lamp about half a meter long, with a wattage from 14-ти до 701-ти Вт, as the optimal solution. First determine the living conditions and distance to the animal, then choose the UVB level.
Which lamp format and base will fit?
A tubular UV lamp about half a meter long will suit a terrarium, and the E27 base determines whether it will fit the socket.
Elemor.ru names a tubular lamp with a wattage from 14-ти до 701-ти Вт as the optimal solution. However, Exo Terra models should be chosen primarily by UVB level, not wattage alone: take the reptile’s needs and living conditions into account.
- Format: a tubular lamp about half a meter long.
- What to look for when choosing Exo Terra: UVB level.
- Base: lamps in the range described require a standard E27 base.
Elemor.ru notes that the absence of UV lights negatively affects terrarium inhabitants. Before buying, check the light fixture’s base and the specifications of the specific lamp.
How do you install the lamp and provide heat?
Install the UVB lamp with the distance to your reptile in mind, and use a separate heat source as well: a fluorescent lamp alone does not provide the necessary warmth.
- If the distance is more than 30 cm, Exo Terra Reptile UVB 200 is recommended for this placement.
- Exo Terra Reptile UVB 100 must be installed correctly and switched on daily for 10–12 hours.
- For heating, pair the fluorescent UV lamp with an infrared or heat lamp.
How can you check UVB if the lamp still lights up?
You cannot check UVB by looking at the lamp’s glow: visible light does not show whether a reptile is getting the right level of UV. Match the lamp model to the animal’s species and living conditions, then take into account the distance from the lamp to the animal’s basking spot.
- Exo Terra Reptile UVB 100 is suitable for tropical and subtropical animals when installed correctly and used daily.
- Exo Terra Reptile UVB 150 is designed for desert animals.
- Exo Terra Reptile UVB 200 is worth considering if the animal is more than 30 cm from the lamp.
When checking the setup, assess the heating separately: a fluorescent UV lamp is not a substitute for a heat source. If the model’s specifications are not sufficient, ask the seller or manufacturer how to check the UVB level for your setup.
When might your lamp choice not work?
Your choice of UVB lamp may not work if you fail to account for the reptile’s habitat, the distance to the animal, and the need for a separate heat source.
- Reptile species: Exo Terra Reptile UVB 100 is suitable for tropical and subtropical animals when installed correctly and run for 10–12 hours a day. UVB 150 is recommended for desert animals: no single model suits every species.
- Distance: if the animal is more than 30 cm from the lamp, consider Exo Terra Reptile UVB 200 rather than automatically replacing it with UVB 100.
- Heating: a fluorescent UV lamp does not provide the necessary warmth. A separate infrared or heat source is needed.
Before installing UVB 100, check that it is suitable for your particular reptile, correctly positioned, and set to run for the required number of hours each day.
When should you replace the lamp, and what should you check before buying?
Replace the UVB lamp according to the lifespan specified by the manufacturer for that particular model: there is no single replacement interval for all lamps. Check the packaging or instructions—the recommended replacement date matters more than whether the lamp still lights up.
Before buying, check four things:
- Animal species: recommendations vary for tropical, subtropical, and desert reptiles.
- UVB level: use this as your guide, not wattage alone.
- Installation distance: choose a lamp based on how far it will be from the animal.
- Base: check that the lamp fits an E27 socket.
Visible light does not show how much UVB a lamp emits. So don’t keep using an old UVB lamp just because it still lights up: check the model’s instructions for when to replace it.
Sources
- Planet of Exotics Blog — “How to Choose a UV Lamp for a Terrarium? A Review of ExoTerra Fluorescent Lamps”
- turtlesland.biz.ua — “Questions and Answers (UV Lamps for Reptiles)”
- VKontakte — “CHECK YOUR UV LAMP Quality.. | Terrariums. UV Lamps for Reptiles and Birds. EcoTop”
- forum.cherepahi.ru — “UV Lamp — Terrarium — Cherepahi.ru Forum”
- reptile.ru — “About the Lifespan of UV Lamps”