Zoo Med ReptiSun T5 HO 10.0 UVB Bulb - (High Output)


Zoo Med Reptisun T5 HO 10.0 UVB High Output Bulbs offer increased UVB and brighter light output that's perfect for larger reptile habitats. This helps enhance vitamin D production to prevent or reverse Metabolic Bone Disease in reptiles.

  • High output UVB bulb that's perfect for larger reptile habitats & desert reptiles
  • Helps increase vitamin D production & prevent or reverse Metabolic Bone Disease
  • Strongest Reptisun available, 2X as strong as standard Reptisun 10.0 reptile lamps

Measuring just 5/8" in diameter, this lamp doesn't take up valuable space, but is still twice as strong as standard 10.0 UVB bulbs. Ideal for large habitats, these lamps emit beneficial UVB light up to 36" from the surface of the bulb.

Reptisun T5 HO 10.0 UVB bulbs emit UVA (30%), UVB (10%) and full spectrum visible light, and are used and recommended by zoos, veterinarians and top reptile professionals worldwide. Use only in lighting fixtures rated for T5 HO (High Output) lamps.

1-year manufacturer warranty. Made in Germany.

Lamp Details

Ideal for large habitats with the following reptiles: Bearded Dragons, Uromastyx, Monitors and Tegus, other desert species of reptiles.

This lamp provides UVB, UVA & Visible light for your reptile:

UVB: Reptiles need UVB for vitamin D prodction and calcium metabolism. Without UVB, reptiles can develop Metabolic Bone Disease in 6 months or less. This lamp, along with proper temperatures, will enable your reptiles to make vitamin D and process calcium from their diet.

UVA: Reptiles and amphibians can see things that humans can't. UVA is part of the rainbow of colors that reptiles can see. UVA helps to increase activity levels, appetite, and reproductive behaviors. Without UVA, they are color blind!

Lamp Distance: Refer to the back of your lamp's box for optimal UVB emit distance (15W - up to 30"). Glass and plastic filter out UVB; there should be no glass or plastic between the lamp and your reptile. Fine mesh blocks up to 50% of light and UVB. This should be taken into consideration when determining lamp distance. The T5 ReptiSun HO is designed for most reptiles housed in terrariums that are 18" to 30" tall. Always have lamp at least 6" away from your animal. The optimal distance from T5 HO lamps to the animal is 18-36", depending on the lamp.

When To Replace Your Lamp: This lamp will provide your animals with beneficial UVB for a period of 12 months when used 10 to 12 hours per day. Record date of first use of lamp and replace after 12 months.

Customer Reviews

Based on 54 reviews
Long Lasting

I have been using these bulbs for my reptiles for about 5 years now and the only thing about them I don't like is the price (which is any UVB bulb, really). They are long lasting, so I start using my meter to test the UVB levels at around 10 months. So far, I haven't had any drop to an unusable level before a year was up.

We have ordered this item many times.

No issues. Bulb always comes in quickly and havent had one yet that came in broken.


Tube UVB is the way to go for your reptiles. Never go coil. These tubes (generally) last about 9 months before needing replacement. I have a UVA/UVB meter to check every month or so, to determine UV output for my bearded dragon. I've not had one yet that burned out suddenly -- All have lasted until the UV output was degraded and needed replacement. Solid recommendation as essential for reptile keepers.

Beardie loves it.

We use for baby bearded dragon. He enjoys basking. Judging by his behavior, this product provides the right amount of light. We turn on at aprox 10 am and turn off around 10 pm. Working without a hitch for 2 months.

It was really awesome for my bearded dragon.

It was great for my beardie


Ask a Question
  • Is there a "36 bulb that is more then 39w? Our daughter tank is about 30" tall and the temp is holding at around 80 and should be 90 degrees correct for bearded dragon?

    I believe the 39w is the highest we have for 36". 

    For a bearded dragon, we recommend a gradient of 80 degrees to 100-110 degrees. Check out our care sheet for more info: https://reptileslounge.com/blogs/care-sheets/care-sheet-for-bearded-dragons