Best UVB bulbs for tortoises Reviewed

Indoor housed tortoises have very different kinds of needs as compared to the ones that are found in the wild. They not only depend on you for food but also other things that you might not know about. This means finding one of the best UVB bulbs for tortoises is an important factor in owning a tortoise.

As they live in a tank all-day that has a very different environment as compared to their natural habitat, they miss out on a lot of essential things that are necessary for their overall development. A UVB light is the most important one among them. 
In the wild, tortoises get UVB light directly from the sun that provides the vitamins and heat needed for bodily functions. Tortoise owners think keeping the tank near the window is a viable solution to this problem; it is not. 
Sunlight that falls on the tanks or the enclosures heats the tank, which is partially beneficial. The glass and other materials block the vitamin D3 that tortoises need for bone development. Without it, tortoises develop bone disorders such as metabolic bone disease which can be life-threatening. 
Now that you know the importance of a UVB light, it would be better if you purchase one for your terrapin’s terrarium. To help you out, we have prepared a list of the best UVB bulbs for tortoises that can help your pet terrapin to a great extent. 

Best UVB bulbs for tortoises: 

Repti Zoo Energy Saving Lamps UVB Bulb: 

Due to its commendable features and advantages, this one of the widely recommended options in the market. It provides the benefits of UVB light to your tortoise while saving a lot of energy. 

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It has a super bright light that keeps your tortoise active all day. The bulb has a durable intelligent chip that regulates the flow of electricity and keeps the power of the light constant while protecting the bulb from getting damaged. 
At an acceptable height of 10-12 inches from your tortoise, it can provide adequate UVB light that is required for the synthesis of vitamin D3 and calcium. A regulated usage of at least 6-8 hours a day can make the bulb last for a year. 
You can save a lot on energy and bulbs with this single product. Moreover, it can be used for other reptiles as well that need UVB for vitamin D3. To get the most out of this bulb, you need to make sure that it is installed properly, according to the instructions provided by the manufacturer. 
Key Specifications: 

  • Size: 7.2 x 2.7 x 2.7 inches
  • Voltage:120V
  • Power usage: 26W


  • A great power saver 
  • Excellent brightness
  • Durable with a chip to protect against the damage from pulsating current
  • Can be used for different reptiles
  • Fits into any normal lamp socket
  • Affordable price


  • Quality degrades after a while 

Lucky Herp Reptile UVB Lamp:

There are very few products that are built to outperform and exceed the expectations of the buyers. Lucky Herp Reptile UVB Lamp belongs to this category and gives you and your tortoise a great experience. 

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It provides a stable flow of UVB radiation with a low fading rate. The bulb might get you concerned about the UVC emissions, but it falls in the range that is harmless to your tortoise.

It can be used for reptiles like sulcata tortoise, lizard, leopard gecko, and a bearded dragon. 
Lucky Herp Reptile UVB Lamp takes care of the outdoor lighting needs and provides the same benefits as the sun when kept indoors.

The lamp emits 10% UVB, and this amount is sufficient to give your tortoise the healthy amounts of vitamin D3 and calcium. It can be used as a remedy to treat metabolic bone disease as it fulfills the needs of your tortoise. 
You can use this bulb with the standard E26 sockets, giving you the benefit of convenience. 
Key Specifications: 

  • Size: 2.36 x 2.36 x 2.04 inches
  • Voltage: 120V 
  • Power usage: 26 Watts 


  • Does not produce harmful UVC
  • Can be used with other reptiles
  • Compatible with standard lamp sockets
  • Has a stable UVB and low UVB fading rate
  • Emits 30% UVA 


  • Emits low light
  • Doesn’t warm basking area enough

Zoo Med Reptisun 10.0 Mini UVB Lamp:

This bulb gives you the dual benefit of UVB light and a heating lamp. It can help you save a lot of money on buying two different products for your terrapin. The bulb uses 13-watts power to provide heat and UVB light that makes the terrarium habitable for tortoises.  

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The bulb does not compromise on its UVB output levels, as it is made from high-quality UVB conducting quartz glass that prevents any sort of UVB absorption at the source. It emits 10% UVB that is enough to provide vitamin D to your terrapin in the right amount. 
It can generate 30% UVA that is adequate to foster natural behaviors like feeding, mating, and others. The bulb screws in the standard threaded sockets, so you don’t have to install any special socket for it. 
You can install the bulb in both horizontal and vertical directions this lets you optimize the reach of UVB light. It is available in varying sizes and can be used in tanks of different sizes. 
Key Specifications: 

  • Size: 6 x 2 x 2 inches
  • Voltage: 110V
  • Watts: 13-Watts


  • Suitable for desert and basking reptiles
  • Produces a UVB output of 10%, necessary for calcium metabolism 
  • Gives off a UVA output of 30% that fosters natural behaviors like mating and feeding
  • No need for a separate ballast


  • The heat might not be sufficient for some reptiles

Creepet UVB Reptile Light Bulb:

This bulb is designed to satisfy all the needs of your tortoise without burning a hole in your pocket. It comes with a chip that stabilizes the current that is supplied to the circuit and prevents the bulb from blowing up and saves you a lot of money on bulb purchases. 

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It is made from quartz glass that conducts UVB optimally and stops it from being absorbed in the bulb itself while making sure that it reaches your tortoise in good amounts. It allows your tortoise to get the UVB radiation needed for calcium metabolism. 
Bright lights are known to attract all the living things and make them more active, Creepet UVB bulb generates excellent bright light that keeps your tortoise healthy and active while saving power. 
Creepet UVB bulb is designed to create an environment that is similar to the natural habitat of a tortoise. 
Key Specifications: 

  • Size: 5.12 x 2.36 x 2.36 inches
  • Voltage: 110V 
  • Power usage: 13-watts


  • It has a long lifespan which is a result of an inbuilt chip that keeps the circuit safe.
  • Produces good UVB output
  • Made with quartz to ensure no absorption of UVB by the glass
  • Bright lighting
  • Saves power
  • Suitable for all desert reptiles


  • Does not provide warmth 

Evergreen 100 Watt UVA UVB Bulb

The Evergreen 100 Watt UVA and UVB Bulb serves as a good source of heat while offering the benefits of UVA and UVB light. It creates the perfect living conditions for the terrapins in the tank by giving them light and heat that is similar to natural sunlight. 

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Unlike most bulbs on this list, the Evergreen 100 watt bulb does not produce harmful UVC. The bulb can be used for other reptiles such as bearded dragons, turtles, geckos, snakes, lizards, iguanas, frogs, toads, chameleons, and more.
The bulb ensures your pet gets the benefits that it should get from the sun. It is a perfect fit for vivariums, terrariums, tanks, vision cages, and other artificial habitats. For a longer life, the bulb should be installed according to the instructions provided by the company. 
Key Specifications: 

  • Size: 6 x 8 x 6 inches
  • Voltage: 120V
  • Power Usage: 100-watts


  • Good source of UVB, UVA, light, and heat
  • Suitable for a wide variety of reptiles
  • Compatible with different artificial habitat


  • Works better in small habitats

MyComfyPets UVB Light and UVA 2-in-1 Reptile Bulb:

Heat and UVB light plays a significant role in the growth of tortoises; it improves their health and helps them live longer. Therefore, it is important to have the right amount of UVB and UVB light in your terrapin’s tank. 

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MyComfy Pets UVB light comes with the dual benefit of heating and UVA emission. Moreover, these bulbs are super durable and do not shatter upon falling. The bulb works to produce heat and light simultaneously which gives your tortoise vitamin D that can help it with the calcium metabolism. 
The bulbs have an inbuilt failsafe switch that turns it off if there is any chance of overheating or fires. This feature can keep your terrapin safe and secure in the tank. The bulb is highly durable and has a lifespan of 10000 hours. 
You can use the bulb for other reptiles such as bearded dragons, lizards, reptiles, birds, terrariums, and aviaries. It is available in two variants i.e. 180-200 UVB and 400UVB they can be used in tanks of different sizes. 
Key Specifications: 

  • Size: 6.89 x 5.91 x 5.71 inches
  • Power usage: 100-watts
  • Voltage: 120V


  • Builds appetite, activity, beautiful colors, and allows calcium absorption through vitamin D3 production
  • Works best for turtles, bearded dragons, lizards, reptiles, birds, terrariums, and aviaries.
  • The bulb emits both UVA and UVB radiation


  • Takes time to start emitting UVA and UVB light 

Zoo Med Desert UVB & Heat Lighting Dual Kit:

Setting up different sockets for a heating bulb and a UVB lamp will not only make the tank look congested but will make it dangerous too. Zoo Med Desert UVB and Heat Lighting Kit can be a great solution for this problem.

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The lighting kit consists of numerous accessories that make up the entire contraption. It has a mini combo deep dome with ceramic sockets that are to be used to power the lamps. The sockets can be used for lamps with a power capacity of 160 watts per second. 
It comes with dual on/off switches which let you control the heat and UVA emissions in the tank. The basking spot lamp has the company’s signature double reflector that reflects 35% more heat and light in the beam. 
This kit is best for diurnal reptiles that thermo-regulate their body by basking. Such reptiles include many tropical and desert species. For a longer life, the bulb comes with a true blue glass of European quality. This glass is not painted or coated with artificial colors which eliminate the fear of toxicity. 

Key Specifications: 

  • Size: 11 x 6 x 7.3 inches
  • Power usage: 13 watts
  • Voltage: 220V


  • Complete lighting kit for “desert” species
  • Mini combo deep dome lamp fixture
  • Repti Basking Spot Lamp 75 watts
  • Repti Sun 10.0 mini compact fluorescent lamp 13 watts


  • Takes approximately 5 mins to start emitting the radiation

Zilla UVB Desert 50 series Fluorescent Bulb 18 inch:

The Desert 50 series bulb is one of the popularly known solutions for improving the bone health of tortoises. Its ability to generate UVB light at 50 microwatts per second helps terrapins to get vitamins in the right amounts, thus improving their overall health. 

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The bulb produces the required UVA light along with a visible-spectrum illumination that makes skin coloration vivid and viewable. It is designed to fit almost all the standard socket types and has a lifespan of 3500 hours or one year on an average. 
Desert 50 series generates double the times of UVB radiation that can make the shell strong. It is important to keep the UVB light close to the basking area. The package comes with a chart that shows the maximum distance the basking area should be placed so that your tortoise gets an effective amount of UVB radiation. 
UVB lights don’t pose any threats to the tortoise, but they should be turned off during the night to make the bulb last longer. 
Key Specifications: 

  • Size: 2 x 19.9 x 1.4 inches
  • Voltage: 80V 
  • Power usage: 15 watts


  • Ideal for desert reptiles that need UVB/UVA lighting
  • Provides UVB light rays which help in metabolizing essential calcium
  • Full-spectrum lighting improves the natural colors of the animal and environment 


  • The longevity of the bulb varies on usage 

PROKTH E27 UVB Lamp for Reptiles:

It can be hard to find a UVB lamp for tortoises that comes with all the necessary features at an affordable price. Fortunately, the PROKTH E27 UVB is the closest you can get to buying a perfect UVB bulb without having to spend much.

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The UVB output of this product is no joke, with just 13-watts and 220 volts it can provide the necessary amount of radiation to your terrapin. It is created using high-quality materials and most importantly has a built-in ballast. 
Even while emitting high radiation the bulb doesn’t consume a substantial amount of electricity. Its energy-saving and compact design can help you save a lot of money. The bulb is suitable for both subtropical and tropical reptiles. It is also believed to help them in reproduction and calcium metabolism. 
It comes in two different radiation outputs i.e. 5.0, 10.0. The UVB 5.0 is mostly used for tropical and subtropical reptiles. Whereas, UVB 10.0 is used for reptiles from tropical desert areas. 
Key Specifications: 

  • Size: 130 * 55mm / 5.12*2.17 inches
  • Voltage: 220V
  • Power usage: 13-watts


  • High UVB output at 13W
  • Stimulate reproduction in reptiles and amphibians
  • The product can completely replace the sunlight
  • Provides necessary UVB rays for best calcium metabolism


  • The durability of the bulb varies based on usage

160 Watts SunForce Mercury Vapor Bulbs:

Disappointed with the low output amount and weak radiation rays generated by ordinary bulbs? You can try the P & P Mercury Vapor Bulbs that produce UVB and UVA with MicroWatts/CM2 which is higher than most of the products on this list. 

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The radiation output of these bulbs is so high that it penetrates further than the tortoise’s cage providing UV in the right amounts. Moreover, the bulb gives heat, light, and UVA & UVB radiation with its Mercury Vapor UVA/UVB bulb. 
It is an effective way of making the terrarium seem natural with the heat and sunlight. This product has many other health benefits apart from providing vitamins and heat to your terrapin. It can be used for other reptiles too. 
Key Specifications: 

  • Size: 4.53*6.1inch
  • Voltage: 220V
  • Power usage: 160-watts


  • High radiation output
  • Suitable for different reptiles 
  • Provides heat, light, and radiation
  • Highly durable 
  • Effective in stimulating natural environment


  • Consumes a lot of power

Commonly Asked Questions About The Best UVB Bulbs For Tortoises 

Tortoise UVB bulbs are available in different shapes, sizes, types, and even have different installation procedures that can have a massive influence on the product’s efficiency. Such differences can confuse you easily and push you towards making the wrong decision. 

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Here are the answers to some of the common dilemmas faced by people when buying a UVB bulb for their pet tortoise. 

Do I Need UVB Lighting for My Tortoise or Turtle?

Many people opt out of buying a UVA and UVB light when purchasing essentials for their pets. It is not that these people lack affection towards their terrapin friends, but they rely on the store associate’s advice who tells them UVB lighting is not necessary. 
The absence of UVB lighting puts your tortoise at the risk of developing metabolic bone disease, becoming unable to synthesize Vitamin D, get lethargic, and lack of appetite.

How much light, heat, and UVB does a tortoise need?

Tortoises need three essential things to have a healthy life such as light, heat, and UVB. Depending on the species and their origins, the quantity of these three things varies massively. For instance, European tortoises that originate from temperate climates need less heat as compared to Mediterranean or tropical tortoises that are familiar to a much warmer temperature. To help you understand better, we have categorized some common tortoise breeds by common setups. 

European Tortoises: 

They are most comfortable outdoors, the European tortoises like Horsfield and Russian prefer a temperate climate. You can get a UVB lamp that provides around 10% to 12% UVB light, and set the heating around 34 degrees as the basking temperature. 

Mediterranean Tortoises: 

These tortoises prefer warmer temperatures, species like Marginated, Greek, and Leopard tortoises need 12% UVB for vitamin D3 synthesis, and the basking temperature set to 34 degrees celsius at the hot end. 

Tropical Tortoises: 

Since they originate from tropical regions, they prefer hotter temperatures for metabolic function such as 34 degrees Celsius or more. Tortoises like Redfoots get little UV in comparison due to the rainforest canopy; you can get a UV bulb of 5/6 percent that are suitable. 

What are the UVA light options for tortoises?

There are many light options available for tortoises these days, but the most traditional type of UVB light is the fluorescent strip light. This bulb looks like any other bulbs that are seen on the ceilings of most schools or places of business.Compact fluorescent UVB bulbs have a similar appearance like that of a corkscrew and have small fluorescent tubes that make the bulb. You can opt for this bulb if you have an extra clamp light laying around. The only problem with these bulbs is they cover a small area. 
Mercury vapor bulbs are quite expensive, but they are more durable as compared to the other options. These bulbs are more powerful than other UVB bulbs and also emit heat. They make an optimal alternative for large enclosures or rooms that house bigger tortoises. 

Conclusion Best UVB Bulbs For Tortoises 

It is common to develop a notion that tortoises are tough creatures, which is true; but only when they are in the wild. Housed tortoises don’t have the same immunity and strength and therefore depend on human interventions such as heaters, feeding dishes, and UVB bulbs. 
I hope the above information has helped you learn more about UVB bulbs for tortoises. If you have any queries or suggestions, you can write it in the comments. 

We hope you enjoyed our guide to the best UVB bulbs for tortoises if you have any questions regarding this article or any of the products on it please be sure to reach out in the comments below.

If you enjoyed this article please check out some of our others such as our guide to the best indoor tortoises or the best tortoise food dish.

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