Heat + UVB
Zoo Med
Reptiles · Heating & Lighting
Zoo Med
Zoo Med PowerSun UV Mercury Vapor Bulb, 160 W
Heat + UVB
Best for: Large enclosures needing heat and UVB
A self-ballasted mercury vapour bulb providing UVB, UVA, heat and visible light from a single fixture.
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What we like
- Heat and UVB in one
- Good for tall enclosures
- Strong basking spot
Keep in mind
- Can't be used with a dimming thermostat
- Runs very hot
Our in-depth look
Who it's for
Large tortoise enclosures and big desert setups.
Who should skip it
Small enclosures — they overheat.
Tips
Never put it on a dimmer — use an on/off thermostat or timer. Check basking temperature and distance carefully.
Questions owners ask
Can I use a dimming thermostat?
No, mercury vapour bulbs need on/off control.
What fixture do I need?
A ceramic-socket dome rated for the wattage.
