The Zoo Med ReptiSun T5 HO Hood is one of the most widely available UVB fixtures in pet stores. It pairs a high-output T5 UVB bulb with a built-in reflector. This review looks at what it offers, how it compares and what to check before setting it up.
Bottom Line: The Zoo Med ReptiSun T5 HO Hood is a solid, widely available UVB fixture with a built-in reflector. It’s a practical choice for many reptile keepers. As with any strong UVB fixture, choose the right bulb for your species and set the distance carefully.
At a Glance
| Feature | Details |
|---|---|
| Type | T5 HO UVB hood with reflector |
| Bulb options | Common options include 5.0 and 10.0 (check current range) |
| Lengths | Several lengths |
| Mounting | Typically on top of a mesh lid |
| Replacement | Zoo Med generally recommends replacing T5 HO bulbs about every 12 months |
What It Is and How It Works
The hood holds a T5 HO bulb and includes a reflector to increase UVB output. It’s designed to sit on top of a mesh lid, though some keepers mount it inside.
Bulb strength matters. Lower-output bulbs suit forest and shade species, while higher-output bulbs suit desert species such as bearded dragons. See bearded dragon lighting.
Because the hood often sits above mesh, some UVB is blocked. This changes the distance needed for the right output.
Strengths
- Widely available
- Built-in reflector
- Several bulb strengths
- Easy to set up
- Generally more affordable than some premium fixtures
Limitations
- Mesh mounting reduces output
- Bulbs need yearly replacement
- Hood may be bulky for some setups
- Coverage depends on enclosure length
How UVB Strength Works
UVB output depends on three things: the strength of the tube, the distance to your reptile and what sits between them.
| Factor | Why it matters |
|---|---|
| Tube strength | Higher-percentage tubes suit desert sun-baskers; lower ones suit forest or shade species |
| Distance | UVB drops quickly as distance increases |
| Mesh screens | Mesh between the lamp and animal can block a large share of UVB |
| Tube age | Output falls over time, even if the tube still lights up |
Many keepers use a UV index meter to check the reading at basking level. Care sheets often describe target ranges by “Ferguson zone,” which groups species by how much sun they typically get in the wild. Match the setup to your species, and provide shaded areas so your reptile can move away from the light.
Before You Buy
- Choose the right bulb strength for your species.
- Check mesh and distance.
- Pick a length that matches your enclosure.
- Replace bulbs on schedule.
- Measure UVB if you can.
Tips for Using It
- Mark the install date on the bulb.
- Pair the UVB with your basking heat source.
- Provide shade areas.
Who It Suits
| Good fit if… | Consider something else if… |
|---|---|
| You want a widely available UVB fixture | You need a very slim fixture for inside mounting |
| You keep a species that needs UVB | Your enclosure is very short |
| You prefer a hood-style fixture |
Alternatives to Consider
| Option | How it differs |
|---|---|
| Arcadia ProT5 Kit | Similar fixture with different reflector design |
| Compact UVB bulbs | Less coverage |
| Mercury vapor bulbs | Heat and UVB together |
When to Call Your Vet
Contact your vet if:
- Your reptile has soft or swollen limbs
- Your reptile has trouble walking or tremors
- Your reptile has eye problems
Frequently Asked Questions
Is ReptiSun 5.0 or 10.0 better?
It depends on your species. Lower-output bulbs suit forest species, while higher-output bulbs suit desert species. Check species guidance.
How far should the bulb be from my reptile?
It depends on the bulb, mesh and setup. Follow Zoo Med’s guidance and measure if possible.
How often should I replace ReptiSun bulbs?
Zoo Med generally recommends about every 12 months for T5 HO bulbs.
Can I mount the hood inside the enclosure?
Some keepers do. Make sure it’s secure and out of reach.
Does mesh block UVB?
Yes. Mesh can block a significant amount of UVB.
Do I need a reflector?
The hood includes one, which increases output.
Can I use it for a leopard gecko?
Many keepers use low-level UVB for leopard geckos. Choose a lower-output bulb and provide shade.
Should I use a timer?
Yes. A consistent day-night cycle is important.
Can the ReptiSun T5 HO hood be daisy-chained?
Some keepers link fixtures or use a power strip with a timer to run several lights at once. Follow Zoo Med’s instructions and don’t overload outlets or extension cords.
Pet Health Man is independent and isn’t paid by the brands we review. Product formulas, specifications and prices change, so check the current label or the manufacturer’s information before you buy.
This article is for general information only and isn’t a substitute for professional veterinary advice. If you’re worried about your pet’s health, contact your veterinarian or an emergency animal hospital.
