Mega-Ray Mercury Vapor Bulb – 160 Watts (120V)

The Mega-Ray Mercury Vapor Bulb, 160 Watts, is a powerful light bulb designed for use in reptile enclosures. It provides essential UVB rays and heat, which are crucial for the health and well-being of many reptile species.

Mega-Ray Mercury Vapor Bulb

Key Features:

  1. High UVB Output: This bulb emits a significant amount of UVB rays, necessary for reptiles to synthesize vitamin D3, aiding in calcium absorption and preventing metabolic bone disease.
  2. Intense Heat Production: With a higher wattage, the 160-watt bulb produces substantial heat, helping to create a warm environment within the enclosure.
  3. Full-Spectrum Lighting: Offers full-spectrum light, closely simulating natural sunlight, which can enhance the coloration and overall vitality of reptiles.
  4. Durability and Longevity: These bulbs are known for their long lifespan and robust construction compared to other types of UVB bulbs.

Usage Tips:

  1. Distance and Positioning: Ensure the bulb is placed at the recommended distance from the reptile to prevent burns and provide adequate UVB exposure. Typically, a higher wattage bulb like this should be positioned further away than lower wattage bulbs.
  2. Appropriate Fixture: Use a suitable fixture that can handle the 160 watts of power and the heat output of the bulb. Ensure the fixture is securely mounted.
  3. Temperature Monitoring: Regularly monitor the temperature within the enclosure to maintain an optimal environment. Adjust the distance or use a thermostat if necessary.
  4. Replacement Schedule: Even though these bulbs are long-lasting, the UVB output diminishes over time. Replace the bulb according to the manufacturer’s guidelines, usually every 6-12 months, to ensure consistent UVB exposure.

Safety Considerations:

  • Fixture Compatibility: Verify that the fixture can safely handle 160 watts of power.
  • Ventilation: Ensure proper ventilation to prevent overheating and reduce fire hazards.
  • Protective Screen: Use a protective screen or barrier to prevent direct contact between the reptile and the bulb, reducing the risk of burns.

Common Applications:

  • Large Reptile Enclosures: Ideal for larger enclosures or for reptiles that require intense heat and UVB light, such as bearded dragons, iguanas, and tortoises.
  • Outdoor Terrariums: Suitable for outdoor terrariums where higher intensity lighting is needed to replicate natural sunlight conditions.


The Mega-Ray Mercury Vapor Bulb, 160 Watts, is an excellent choice for reptile enthusiasts who need a high-intensity light source that provides both heat and UVB rays. Proper usage, including appropriate distance, fixture compatibility, and regular monitoring, is essential to ensure the health and safety of your reptiles.

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