ZooMed Infrared Heat Lamp 100W ES RS-100 is made of true red glass, not painted or coated! Zoo Med’s spot reflector focuses more heat into your enclosure and minimizes nighttime glare. Ideal 24 hour heat source for all types of reptiles, amphibians, birds or small animals. Very little visible light provided so as not to disturb your animal’s sleep patterns. Excellent for nocturnal viewing of all types of captive animals.