The Exo Terra Night Heat Lamp simulates natural moonlight to allow nocturnal viewing without disturbing the animal\'s day and night cycle. The light emitted is bluish due to the use of blue glass. The heat generated by the bulb is minimal but enough to provide tropical night time temperatures. The lower wattage of these bulbs does not interfere with natural night drops in temperature. Moonlight lamp that simulates natural moonlight and is perfect for nocturnal viewing. The bulb provides tropical night time temperatures and stimulates breeding behaviour in reptiles and amphibians. Can be combined with Repti Glo or Sun Glo for a 24 hours cycle.