Buying guide

The Best Basking Bulb for a Leopard Gecko

Researched by Johnny Alto · last updated July 27, 2026

Short answer: The best basking bulb for a leopard gecko is the Zoo Med Repti Basking Spot Lamp (50W). The basking bulb reptile keepers reach for most. The main things to weigh are focused spot beam, right wattage, use a thermostat, and heat and uva.

Top pick

Zoo Med Repti Basking Spot Lamp (50W)

The basking bulb reptile keepers reach for most. The Zoo Med Repti Basking Spot uses a double reflector to throw a tight, focused beam that raises the basking surface temperature efficiently, and it is sold in 25, 40, and 50 watt so you can match the wattage to your tank. It gives the heat and bright UVA daylight a leopard gecko wants (it is not a UVB bulb), it is cheap, and it is stocked everywhere. Pair it with a thermostat or dimmer and it is the reliable, right-beam pick.

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How this guide was made: I don't own every product I write about, and I won't pretend otherwise. Unlike the hands-on reviews elsewhere on this site, this is a research pick, synthesized from reptile-keeping communities like r/leopardgeckos plus verified buyer reviews. It reflects the community's consensus, not my own testing. See how we research our picks →

Leopard geckos bask to a fairly low surface temperature, around 90 to 95 degrees, so the goal is a focused spot bulb at a wattage that warms the basking spot without cooking a small tank. In a 10 to 20 gallon enclosure a 50 watt can run hot, so a 25 to 40 watt is often safer, and you should always control it with a thermostat or dimmer and check the surface temp. Look for a tight-beam basking spot bulb, wattage matched to your tank size, and a thermostat.

How do the best options for basking bulb for a leopard gecko compare?

Pick	Product	Why it makes the list
Top pick	Zoo Med Repti Basking Spot Lamp (50W)	The basking bulb reptile keepers reach for most.
Broad daylight	Exo Terra Sun Glo Halogen (50W)	A halogen spot that gives a broader-spectrum daylight and efficient heat, again in a focused beam. A nice option if you prefer a whiter light over the enclosure; like the top pick it provides heat and UVA, not UVB.
Lower wattage	Fluker's Incandescent Basking Spotlight (40W)	A 40 watt spot that runs cooler, a smart choice for a small tank or a warm room where a 50 watt would push the basking spot too hot. Same idea: focused heat and UVA, paired with a thermostat and a check of the surface temp.

What should you look for in basking bulb for a leopard gecko?

A few things separate a good basking bulb for a leopard gecko from a frustrating one: focused spot beam, right wattage, use a thermostat, and heat and uva. Weigh these before you buy.

Focused spot beam: a reflector bulb that heats the basking surface.
Right wattage: 25 to 40 watt for small tanks; 50 watt can overheat them.
Use a thermostat: a dimmer or thermostat to hold ~90 to 95 degrees.
Heat and UVA: a basking bulb warms and lights; add a separate UVB source.

How the picks compare on specs

Spec	Zoo Med Repti Basking (pick)	Exo Terra Sun Glo Halogen	Fluker's Basking Spot
Wattage	50W (also 25 / 40W)	50W	40W
Type	Incandescent spot	Halogen spot	Incandescent spot
Beam	Double-reflector tight	Broad daylight	Focused spot
Provides	Heat + UVA (no UVB)	Heat + UVA (no UVB)	Heat + UVA (no UVB)
Approx price	~$8	~$10	~$7

What are the best alternatives?

Broad daylight

Exo Terra Sun Glo Halogen (50W)

A halogen spot that gives a broader-spectrum daylight and efficient heat, again in a focused beam. A nice option if you prefer a whiter light over the enclosure; like the top pick it provides heat and UVA, not UVB.

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Lower wattage

Fluker's Incandescent Basking Spotlight (40W)

A 40 watt spot that runs cooler, a smart choice for a small tank or a warm room where a 50 watt would push the basking spot too hot. Same idea: focused heat and UVA, paired with a thermostat and a check of the surface temp.

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Bottom line: the Zoo Med Repti Basking Spot is the right-beam value pick sized to your tank; the Exo Terra halogen gives whiter light and the Fluker's 40 watt runs cooler for small setups.

Our top pickZoo Med Repti Basking Spot Lamp (50W)

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Frequently asked questions

What is the best basking bulb for a leopard gecko?

Zoo Med Repti Basking Spot Lamp (50W). The basking bulb reptile keepers reach for most.

What should you look for in basking bulb for a leopard gecko?

Focus on focused spot beam, right wattage, use a thermostat, and heat and uva.

What is a good alternative to the Zoo Med Repti Basking Spot Lamp (50W)?

The Exo Terra Sun Glo Halogen (50W). A halogen spot that gives a broader-spectrum daylight and efficient heat, again in a focused beam. A nice option if you prefer a whiter light over the enclosure; like the top pick it provides heat and UVA, not UVB.

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This is a research-based buying guide, not a personal hands-on review; recommendations reflect community consensus and verified buyer reviews. Prices and availability are subject to change, so always confirm on Amazon. As an Amazon Associate I earn from qualifying purchases. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.

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