Heat Bulb Hagen Exo Terra Daytime Heat 150W — basking lamp for terrariums

Hagen Exo Terra Daytime Heat 150W is a 150-watt daytime heat bulb designed to provide focused radiant warmth in reptile and amphibian terrariums. The lamp produces a concentrated basking spot that helps create a thermal gradient within the enclosure, supporting natural thermoregulatory behavior and daytime activity. Intended for use with heat-resistant fixtures, this bulb delivers reliable, consistent heat output suited to species that require elevated surface temperatures during the day.

Advantages

This heat bulb offers targeted, infrared-rich warmth to establish defined basking areas without producing visible light that disturbs day/night cycles. Its 150 W power rating provides sufficient heating for medium to large terrariums when combined with appropriate reflectors and fixtures. The design is compatible with common ceramic or heat-resistant lamp holders and facilitates straightforward integration into existing terrarium heating setups.

Suitable for

• Creating basking spots for reptiles such as bearded dragons, iguanas, and tegus
• Providing daytime heat for amphibians that require warmer microclimates
• Use in terrarium setups that need a directed radiant heat source
• Supplementing under-tank heaters or ambient heating to form a temperature gradient

Key specifications

• Power: 150 watts
• Type: Daytime heat / basking bulb
• Output: Focused radiant heat for creating basking areas
• Use: For heat-resistant fixtures and reflectors designed for high-temperature bulbs
• Suitable environment: Indoor terrariums for reptiles and amphibians

How to use

Install the bulb in a properly rated, heat-resistant lamp holder or ceramic fixture positioned above the basking surface. Adjust the fixture height and use a thermometer or infrared temperature gun to measure surface temperatures in the basking spot and across the enclosure to ensure a suitable thermal gradient. Operate the bulb during the animals' daytime hours only; pair with a programmable timer or thermostat as needed to maintain consistent day/night temperature cycles and prevent overheating.

Usage recommendations

Monitor temperatures regularly and combine with appropriate hide areas and cooler zones to allow animals to thermoregulate. Do not use the bulb in fixtures that are not rated for high-temperature bulbs and avoid direct contact between the bulb and any substrate or enclosure materials.