Mega Ray Mercury Vapour UVB Lamp

The Mega Ray PR80 is a self-ballasted mercury vapour lamp designed to deliver both UVA and UVB output alongside heat in a single bulb. Available in a range of wattages to suit enclosures of different scale, this E27 fitting lamp is a serious tool for keepers who want an all-in-one basking and UV source for reptiles, tortoises, turtles, and birds.

What It Does

Mercury vapour lamps combine a heat source with genuine UVA and UVB production — no separate UV tube required. This makes them particularly well suited to larger basking species with high UV requirements, as well as avian setups where a broad-spectrum light source is beneficial. Snakes requiring UVA exposure also benefit from this type of lamp.

Placement and Distance

As with all mercury vapour lamps, correct mounting distance is essential — both for animal welfare and bulb performance. The minimum safe distance from the face of the bulb to the animal should always be observed, with an optimal zone beyond that for most species. Lower UV-requirement animals such as amphibians should be positioned at greater distances still. Always follow the guidance provided with your specific wattage variant.

Choosing the Right Output

The Mega Ray PR80 range is available in four wattages, from a compact option suited to smaller or juvenile animal enclosures through to high-output versions appropriate for large vivariums and professional setups. Smaller wattages work well for juvenile turtles, tortoises, and lizards where a more modest heat output is needed. Higher wattages suit larger enclosures where greater basking distances and stronger UV gradients are required. Select your variant from the options above based on your enclosure size and species requirements.

Fitting and Compatibility

All variants in this range use a standard E27 screw fitting. Mercury vapour lamps must always be used in a suitable open-ended ceramic or porcelain lamp holder rated to handle the heat output — never in an enclosed fixture. A reflector dome or open pendant fitting is the correct housing for this type of lamp.

The Mega Ray PR80 range gives keepers a reliable, no-compromise UVA/UVB and heat solution in a single fitting. With multiple output options available, there is a variant suited to most vivarium setups where a mercury vapour source is the right choice for the species being kept.