Best UVB for Bearded Dragons

By Snaketracks / January 20, 2020

Best UVB Bulb for Bearded Dragons

Choosing the Best UVB for Bearded Dragons can be a confusing and difficult choice to make. Those who’ve newly considered using UVB for their pet’s lighting needs may have little idea about the purpose and considerations on choosing the best UVB light for a Bearded Dragon.

Here, we share with you the Top 5 products according to value, performance, and more. For a quick answer, the top 3 are Zoo Med Repti Sun 5.0, Zoo Med Repti Sun T8 10.0, and MyComfyPets 100W UVB.

Your Top 3 Choices

Zoo Med ReptiSun 5.0 paired with a lamp like this is an Amazon’s Choice product. It’s your best choice for small enclosures and bulk purchases bring down the unit cost.

Zoo Med Reptisun T8 10.0 paired with a Reptisun fluorescent hood works well with larger terrariums. Simply hang this in the middle of your tank to give full UVB/UVA exposure no matter which side of the tank your pet Bearded Dragon is located.

MyComfyPets 100W UVB paired with a Flukers Sun dome can sufficiently provide both lighting and heating for your pet reptile.

Read on for more information on the Top 5 UVB lights for your Bearded Dragon.

1. Zoo Med Reptisun 5.0 UVB Bulb


  • It is suitable for Bearded Dragons and other reptiles.
  • It provides both UVB and UVA. (5% UVB Output, 30% UVA Output).
  • Purchasing a 4-pack or 6-pack order is even cheaper.
  • You don’t need a separate ballast. It secures fittingly into threaded sockets.
  • It can be oriented vertically or horizontally in your lamp.
  • It’s great for small pets and enclosures.
  • It’s effective for creating zones of exposure and for canopy tops.


  • It’s not a sufficient light source for large enclosures.
  • Ultra-fine mesh and ordinary glass or plastic will reduce exposure.

Buy on Amazon

2. Zoo Med ReptiSun T8 10.0 UVB Lamp


  • It provides both UVB and UVA for your Bearded Dragon. (10% UVB output, 30% UVA output).
  • It works great even with larger terrariums.
  • It emits a full 20/51cm of UVB from the surface of the lamp.
  • It provides sufficient UVB exposure for your pet even with screen covers that can filter out some of the UVB rays.
  • A T-5 variant is also available.
  • Works wonders with ill and rescued Bearded Dragons.


  • May be more expensive compared with other types of UVB lights.
  • May be too bright for some pets.
  • May need replacement more often compared with other types of UVB lights.

Buy on Amazon

3. MyComfyPets 2-in-1 100W Reptile Bulb


  • It supplies both UVB and UVA light for your Bearded Dragon.
  • It is suitable for other reptiles.
  • It is self-ballasted and easily screws in place.
  • It can provide up to 10,000 hours of natural sunlight.
  • You can choose between 180-200UVB or 400 UVB.
  • It has a safety internal shut-off feature in case of overheating.


  • The price runs on the expensive side.
  • The service time may be shorter. Some users had to replace sooner than expected.

Buy on Amazon

4. Evergreen Pet Supplies 100 W UVB Mercury Vapor Lamp


  • It is completely self-ballasted.
  • This mercury vapor bulb provides both lighting and heating for your Bearded Dragon.
  • Ideal for Bearded Dragons and most reptiles and amphibians.
  • Compatible with all types of enclosures including vivariums, tanks, terrariums, vision cages.
  • Longer service time compared with other types and brands.


  • Mercury vapor lamps are more expensive than fluorescent.
  • Needs more delicate care and use. Some advice installing them only on wire clamp lamp fixtures to provide air movement and lengthen the lifespan.

Buy on Amazon

5. Exo Terra Repti-Glo 5.0


  • It is ideal for most tropical and sub-tropical reptiles.
  • It emits a high UVB output and provides essential UVB rays for your Bearded Dragon.
  • The 13W UVB light is effective up to 12″ while the 26W variant is effective up to 15”.
  • Regular screw fitting makes it usable for most lamps.
  • It is self-ballasted.
  • It is available in 13W and 26W.
  • It is energy efficient.
  • It is cheaper compared to other types.


  • May not be sufficient for larger enclosures or tanks.
  • May not provide sufficient heating for your pet reptile.

Buy on Amazon

Buying Guide

Those new to lighting setups may be wondering and asking this basic question: “Do bearded dragons need UVB?” Well, many say it’s optional. But, many more think it’s highly recommended.

UVB provides lighting that helps your pet reptile absorb Calcium and synthesize Vitamin D3. Giving UVB lighting to your Bearded Dragon prevents and even reverses metabolic bone disease.

Those who’ve experienced rescuing reptiles or nursing ill pets back to health recommend the use. They’ve seen firsthand how UVB light exposure speeds up recovery and improves the appetite.

With UVB exposure, Bearded Dragons and other reptiles are healthier and more active. The skin and color shading have more brilliance. Reproduction rates and outcomes are more successful.

UVB and also UVA lighting promote longevity because the light exposure is quite the same as what your pet gets in its natural habitat.

Before making a purchase, consider these key factors when buying a UVB light for your Bearded Dragon:

1. Size of Enclosure

Some products are only effective up to a certain size. Consider the width and height of your tank, cage, or terrarium and purchase a wattage and lamp type that will be most effective for your setup.

2. Service Time

Life or running hours is a key consideration since it determines value for money. Don’t be tempted to simply buy a cheap one that may likely have you purchasing a replacement after a short time of use.

You should consider getting a UVB tester like the one from Repti Zoo. Alternatively if you want a more professional tester you can get the Tinton Life UVB meter.

3. Purpose

Determine your purpose and priorities. Do you want UVB, UVA, or both? Are you open to using UVC later on? If so, select combo bulbs and lamps.

Ask yourself, “What watt UVB bulb do I need for a bearded dragon?” Well, that depends.

Do you simply want lighting? Or, do you also need heating? If you need a dual-purpose product, consider buying a high wattage lamp or go with a mercury vapor lamp.


To wrap up, you can select your purchase from these top 3 choices: Zoo Med Repti Sun 5.0, Zoo Med Repti Sun T8 10.0, or MyComfyPets 100W UVB.

Small enclosures do well with Zoo Med Repti Sun 5.0. It provides sufficient lighting and is a great choice if you want to provide specific spots for lighting. Consider purchasing a pack to save more money.

Larger terrariums will do better with Zoo Med Repti Sun T8 10.0. Place it center and you’d be assured of steady UVB lighting no matter which spot your pet Bearded Dragon may choose to bask or lounge in.

Lastly, MyComfyPets 100W UVB is a good choice if you want to provide lighting and heating for your pet reptile. The bulb has an internal shut-off feature that keeps your Bearded Dragon safe from overheating problems.

Have a look at our guide to learn how to create a perfect bearded dragon setup.

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