Mercury Vapor bulbs are the closest imitation of natural sunlight that can be created with a single light bulb. Mercury Vapor bulbs produce full-spectrum light, heat (infrared radiation), UVA and UVB radiation like the sun.
Mercury Vapor bulbs can be used as the only light and UVB source for diurnal reptiles from deserts and other open and sunny areas. It is often the most useful as an effective basking spot and UVB lamp.
This light bulb has an internal reflector which directs the radiation effectively. Due to the the power of these lamps, they are suitable for relatively large terrariums.
These UVB Mercury Vapor light bulbs are self-ballasted so they can be used like normal incandescent bulbs in light systems with standard screw socket.