Mega-Ray Mercury Vapor Bulb, 100w

The Mega-Ray Mercury Vapor Bulb, 100w, offers a unique combination of heat, light, and UVB, essential for your reptile’s health. Renowned as one of the most dependable mercury vapor bulbs in the US, Mega-Ray stands out for its quality and performance.

With advanced technology and over two decades of extensive research, Mega-Ray has managed to minimize the typical degradation seen in other mercury vapor lamps. Unlike competitors that may lose up to 80% of their effectiveness, this bulb maintains over 70% of its potency throughout its lifespan.

The 100w Mega-Ray bulb is a self-ballasted PAR-38 True Frosted Flood Lamp, designed to provide a wide spread of usable UVB across a 30" diameter when placed 20" away from the basking spot.

To ensure optimal performance, replace the Mega-Ray Mercury Vapor Bulb every 18 months.

UV Index Readings:

At 12" from lamp — UVI 9.0

At 14" from lamp — UVI 6.0

At 18" from lamp — UVI 3.5

At 24" from lamp — UVI 1.0 - 2.0

Measure the distance from the lamp face to the basking area or reptile to achieve ideal UVB exposure and heat levels.

Usage Guidelines:

Pair this bulb with a wire lamp fixture to avoid overheating issues.

Due to its intense UVB output, this bulb is ideal for spacious enclosures (minimum 24" height) housing high-UVB-needing reptiles like bearded dragons, uromastyx, and chuckwallas. Always check your reptile’s specific UVB needs and adjust the bulb’s placement as necessary.

You might need an extra halogen heat source or UVB lamp to achieve the right thermal or UVB gradient for your pet. Carefully monitor the basking spot temperature and adjust the fixture height to prevent overheating. Always double-check basking area heat to ensure your reptile’s safety!

For optimal results, use a Solarmeter 6.5 with mercury vapor bulbs to confirm your reptile receives the correct UVB levels.