Best UVB Bulbs for Tortoise in 2022: Buying Guide and Reviews

Larry Mills
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There are so many options and brands of UVB bulbs out there. I have shortlisted the top 10 UVB bulbs that you can easily purchase online.

What is the best UVB bulb for tortoise?

If you are not well-versed in the subject of reptile lighting, you’re bound to ask yourself “what is the best UVB bulb for tortoise?”

The answer to this problem is the ReptiSun 5.0 UVB. After extensive research, we found that this specific bulb is the best value for money commercially produced UVB light on the market.

It’s a 5% UVB bulb made by Arcadia that will provide enough UVB for most tortoise owners.

How much UVB do tortoises require?

The answer to this question depends on several factors. First and foremost is the species of tortoise.

The second factor is the age of the tortoise.

The third factor is where you live.

Finally, the fourth factor is where you get your UVB bulb.

So, let’s take a look at each of the factors in turn and explain them in detail.

What is the right UVB level for tortoise?

NameCategoryProduct
Zilla UVB Fluorescent Bulb 18 inchBest OverallZilla UVB Fluorescent Bulb 18 inch
Zoo Med ReptiSun 10.0 Mini Compact Fluorescent LampBudget PickZoo Med ReptiSun 10.0 Mini Compact Fluorescent Lamp
MyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100WUpgrade PickMyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100W

1. Zilla UVB Fluorescent Bulb 18 inch

Our rating: 9 / 10

Zilla UVB Fluorescent Bulb 18 inch

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Pros:

  • Good length
  • UVB stable
  • Cool operating temperature

Zilla UV bulb is very effective for tortoise. its powerful and can cover a larger area.

2. REPTIZOO Energy Saving Lamps UVB Bulb,Spiral Compact 26 Watts UVB 10.0 Reptile Light Bulb Fit

Our rating: 8 / 10

REPTIZOO Energy Saving Lamps UVB Bulb,Spiral Compact 26 Watts UVB 10.0 Reptile Light Bulb Fit

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Pros:

  • Compact energy savers that can go just about anywhere
  • Lightweight and well-constructed, easy to take with you
  • They screw into a lamp holder easily and securely
  • The light is brighter than most other UVB lights and includes a reflector to bounce the light around the cage
  • The price is quite reasonable

Cons:

  • You can’t run it on a timer
  • The bulbs are quite short and can’t be placed too high in a larger terrarium

The ReptiZoo UVB bulbs are very lightweight and easy to take with you if you want to put them in a sunnier area to get more UVB exposure for your leopard tortoise. The light is powerful and the reflector has been appropriately designed.

This is one of the cheaper bulbs we found but it’s certainly not a problem as it is an excellent product.

3. Zoo Med ReptiSun 10.0 Mini Compact Fluorescent Lamp

Our rating: 8 / 10

Zoo Med ReptiSun 10.0 Mini Compact Fluorescent Lamp

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Pros:

  • Compact fluorescent lamp
  • Gives out 10% UVB & 90% visible light
  • Easy to install

Zoo Med ReptiSun 10.0 Mini Compact Fluorescent Lamp is the compact fluorescent lamp and one of the best choices for are your pet reptiles. It is ideal for all reptiles that require full UVB exposure whether they are desert or tropical.

Unlike the old conventional mercury vapor bulbs, this compact fluorescent lamp replaces the standard glass bulb with durable shatter free polycarbonate. The bulb is designed to produce UVB rays and does not require any direct contact with heat, so it will not burn.

The product is made of shatter-resistant polycarbonate, which brings about durability. This also ensures that it will work well in higher temperatures.

4. MyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100W

Our rating: 7 / 10

MyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100W

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Pros:

  • Automatic ballast hums quietly
  • The UVB light is the perfect length and easy to replace
  • Comes with a sleek stand
  • Its overall space-saving design

Cons:

  • If you run the UVA light alone, it only lasts 6 hours
  • Instructions regarding wattage are vague

Feeding problems, dehydration, lethargy, etc. can often be traced to heat sources, either inadequate or excessive. Reptiles use these sources to determine the seasons, which is why they need the right amount of UVB light for their different periods of activity.

To ensure your reptile gets the right amount of UVB, use a UVA and UVB meter. These can be purchased from most pet stores, and they are small and lightweight. Always check the wattage of the bulb as this will influence the level of UVB that your reptile will receive.

After choosing the right UVB bulb, you will need an automatic ballast. This device will prevent your tortoise from burning itself due to the heat, and it also acts as light dimmer. The ballast will allow you to control the amount of UVB light and control the time your reptile is exposed to it.

5. LUCKY HERP Reptile UVB Compact Fluorescent Lamp­

Our rating: 7 / 10

LUCKY HERP Reptile UVB Compact Fluorescent Lamp­

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Pros:

  • The most affordable option
  • Can be used to provide light for various reptile needs
  • Provides UVA and UVB in the UV light spectrum
  • Safe for your pet

Lucky Herp is the only company to offer a quality line of compact fluorescent bulbs at an affordable price. The reptile UVB is made in the USA so you know the quality is high and that the production standards are met.

This is the brightest and most cost-effective way to tan your iguana or to help your bearded dragon reproduce without having to install expensive UV lights or Vivarium lamps.

These types of bulbs are designed to mimic natural sunlight, thereby producing the necessary amounts of UVA and UVB rays. They are also easy to install, and replacement bulbs are readily available.

Frequently Asked Questions (FAQ)

What is the best UVB light for tortoise?

UVB light is essential for keeping your tortoise properly hydrated and for the health of the reptile's shell.

Exposure to UVB also helps your tortoise maintain healthy levels of vitamin D3, which helps with the absorption of calcium and proper bone growth. Exposure to UVB also helps your tortoise's internal organs to stay healthy.

In order to help your tortoise stay healthy, you should always purchase a tortoise shelter or tortoise table that has UVB bulbs installed. Since the bulbs will only last 1-3 years, you will also need a plan for maintaining your tortoise's exposure to the UVB bulbs.

To accomplish this, you will need to replace the bulbs every 1-3 years with a new one of the same wattage. Another option is to purchase a UVB monitor and place it in the terrarium with your tortoise. The UVB monitor will typically beep when the bulb needs to be replaced.

How much UVB does a tortoise need?

A 10.0 UV index is considered necessary to help a tortoise manufacture vitamin D3. In the wild, tortoises would only experience this level of UVB from direct sunlight, which is a factor in metabolism and overall health.

Because of this, tortoises kept indoors or in lit habitats should receive a proper amount of UVB on a daily basis. Too much or too little UV will have a negative impact on the health of a captive tortoise.

There are a few things to think about when it comes to UVB bulbs for tortoises.

First, although it is possible to measure the UV output of a light source, it doesn't tell the entire story. This is because the way the light source interacts with the environment has an impact on the levels of UV that the tortoise actually is exposed to. For example, morning sunlight typically has a higher UV level than late afternoon sunlight.

Can a tortoise get too much UVB?

A tortoise’s body absorbs and uses UVB light to make Vitamin D3. While exposure to UVB is important, there are limits to how much exposure a tortoise should have.

Many people are not aware that a tortoise, in general, needs less UVB when they live indoors or in a heated area. The only time a tortoise should be in direct contact with a UVB light is in the case of a sick or weak tortoise.

Your tortoise really needs UVB light only during the winter months. If you have a heated home, indoor tortoise, or tortoise room, you will not need to provide UVB bulbs or tubes during the spring, summer, or fall months.

What is the best heat lamp for a tortoise?

Tortoises technically do not need a light source of any kind. They do enjoy, however, a heat source of some kind. Whereas a reptile might be able to get some heat from a lamp, a tortoise is not likely to do that. Instead, they need an infrared heat lamp.

Here is a list of what you will need to keep your tortoise healthy and happy:

  • A good sand substrate
  • Something to keep the sand base from getting dirty
  • A heat lamp
  • Supplementary UVB lights
  • A screen cage (a glass one is preferred but not necessary)
  • Fountain or a water dish
  • Do not put other animals in the cage with your tortoise
  • Don't mix species
  • A subtrate that mimics their natural habitat
  • Hibiscus leaves

Conclusion

The best UVB bulbs for tortoise should be able to emit the UVB rays that they need to produce vitamin D3, which is essential for their bones, digestive systems, development, and reproduction. They should also be easy to use and store, come with a heating device if you need one, and should be reasonably priced.

With all the different ones available, it can be hard to know which one is best for your pet. This buying guide will help you narrow your search by explaining what to look for in tortoise bulbs.

Our Recommendation

NameCategoryProduct
Zilla UVB Fluorescent Bulb 18 inchBest OverallZilla UVB Fluorescent Bulb 18 inch
Zoo Med ReptiSun 10.0 Mini Compact Fluorescent LampBudget PickZoo Med ReptiSun 10.0 Mini Compact Fluorescent Lamp
MyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100WUpgrade PickMyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb 100W