Exo Terra Tropical UVB 100 Reptile Bulb

By Exo Terra
Rated 3.575 out of 5 stars


Selected: Size:


Selected: Size:

$25.99Chewy Price
$26.99Chewy Price
$24.69Autoship Price
Autoship (Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

Temporarily Out of Stock
Get notified when this item is back in stock.

Compare Similar Items

Customer Rating
Rated 2 out of 5 stars
Rated 3.6667 out of 5 stars
$14.99Chewy Price
$21.99Chewy Price
$23.99Chewy Price
$14.49Chewy Price
$19.99Chewy Price
$14.24Chewy Price
$20.89Chewy Price
Capacity (Max)0.4-lb

About This Item


  • Exo Terra Bulbs provide UVB light reptiles require for vitamin D3 to absorb and metabolize calcium which is essential for healthy bone growth and preventing metabolic diseases
  • Emits optimal levels of UVB similar to the shady environments of rain forests and other tropical locations where there is less direct sunlight and UV exposure
  • Ideal for all tropical and sub-tropical reptiles, UVA rays stimulate appetite, activity and reproductive behavior
  • Optimal levels of UVB
  • Effective up to 40 cm (15”)

See More


Questions & Answers

18 Customer Questions

How long does this bulb last?
Answer by ChewyOct 04, 2019
These bulbs typically last 6 months to a year. It's recommended to change these bulbs yearly to keep reptiles healthy.

Is this type of bulb good for Hermit crab and their shells or activity?
Answer by ChewyNov 17, 2019
This lamp would be suitable for hermit crabs.

Does this light give off a yellowish hue? Or is it more like a fluorescent lighting?
Answer by ChewyOct 09, 2019
This bulb is florescent and glows in a bright white.

Would this lamp be useful for a grey tree frog enclosure?
Answer by ChewyNov 28, 2020
This lamp is Ideal for all tropical and sub-tropical reptiles, such as tortoise, aquatic turtle, and bearded dragons.

ReviewsWrite a Review

Rated 3.575 out of 5 stars
40 Ratings
Would recommend to a friend

40 Customer Reviews

Rated 1 out of 5 stars
By Steph on Jan 11, 2023

Broke in a week

I recently switched to this bulb for my turtle tank. Unfortunately it only lasted for a week , very disappointed.

Rated 1 out of 5 stars
By GJan on Feb 26, 2023


this bulb only lasted 3 mounths and was only used a few hours a day

Rated 2 out of 5 stars
By Kits on Aug 2, 2021

might last 2 weeks might last many months...

Product inconsistent. I just had to change one again after only 2 weeks, when the prior bulb lasted for months.

Rated 5 out of 5 stars
By btsliz on Feb 1, 2021

Good service

The first bulb that I got looked good but it didn't turn on with my dome so I reached out to customer service and they replied so nice and quickly, they sent a replacement in no time and the new bulb that arrived works perfectly. Definitely reccomend for the price at chewy and not at the pet store def. worth the wait

Rated 1 out of 5 stars
By Super on Oct 25, 2020

defective out of box

I like to keep a spare bulb in case one goes out, so it is hard to say how long ago I bought this bulb, I do know that I didn’t order it threw chewy. Having read other reviews I felt it necessary to write one as I’ve had the same experience. My last bulb a zoo med uvb 10 (which seemed to last forever) finally gave out and I put this brand new bulb in and nothing. I tried it in other fixtures just to make sure the fixture didn’t go bad. That isn’t good quality control by exoterra if you ask me since other people have had the same issue.

Rated 1 out of 5 stars
By LApple on Sep 30, 2020

Horrible - Didn’t fit the fixture properly and died quickly

I purchased this lightbulb for my daughter’s turtle. According to the measurements and wattage, it should have worked just fine with the lamp fixture we purchased, but the bulb head was too long (wasn’t flush). Fortunately, we were able to take advantage of the clip to remedy that situation. She used it a couple hours a day in addition to taking the turtle outside. It stopped working within a week or two (maybe 14-20 hours of total run time).

Rated 2 out of 5 stars
By Tiana on Sep 11, 2020

It's Too Long

This bulb works fine. I bought the 26-w bulb for my turtle's basking area. The way my tank is set up, there's nowhere to clip the lamps on, so they have to sit on a wire lid above the basking area. This bulb is so long, it sticks out a couple inches from the 5.5 inch Fluker's clamp lamp. I ordered the 8.5 inch lamp because it said it could house a bulb that was longer than this one. Even with the larger lamp, this bulb still sticks out almost an inch from the bottom. It's been difficult to find an affordable lamp that will fit this bulb.

Rated 5 out of 5 stars
By Naturegirl on Nov 17, 2020

Sunlight turtle bulb

My two female red sliders love it. They are now in a set up in my garage. Their winter home. The are large adults.

Rated 5 out of 5 stars
By honeybun on Jan 14, 2021


Light was just right. Very quick with delivery. Will order again

Rated 1 out of 5 stars
By fausta on Nov 13, 2020

burnt out in a month

it was great until it started flickering one morning and went out not long after i noticed it