The Komodo Infrared Spot Bulbs are produced using deep red glass rather than spray coating a clear bulb with red paint. The low levels of light produced by these bulbs is ideal for night time heating of diurnal species as it will not interrupt their natural sleep pattern. They can be used 24 hours a day with certain nocturnal reptiles, amphibians and invertebrates that are sensitive to bright daylight this can enough activity furring the day and allows for easy viewing at night. 90% of the energy used by this Komodo reptile Infrared Bulb helps to efficiently direct heat to a desired location. When placed in an appropriate location this enables optimal thermoregulation within your animal. Komodo Infrared Bulbs are suitable for use with an appropriate thermostat such as the Komodo 600W dimming thermostat. Available in 4 wattages. Soft red lighting for restful heating Emits up to 90% of power as beneficial IRA heat rays Optimum heat source for efficient thermoregulation & metabolism Raises ambient air temperatures