HALOGEN SPOT LAMPS; 100W. It may produce UVA light source which focusing reflective coating required by the reptile. The addition of nitrogen into glass bulb may prolonge filameny life. The functions of UVA light source is natural sunlight spectrum. It may provide heat basked temperature in reptile environment. reptile pet may increase the temperature on or under skin int the comfortable points, but also create the temperature difference to the surroundings; UVA light source is helpful to improve reptile appetite and digest food. te restoring of natural spectrum may promote normal metabolism of reptiles. Large quantity and even output of daytime spectrum. high strength concentrated ray improves the temperature of sun point. explosion proof, water proof and mist proof. improve the temperature in terrarium. generate UVA ray and promote normal activities of reptile pet. suitable to daytime use.