Infrared heating can penetrate animal muscle. But not to shine, and do not affect pets sleep. Suitable for tropical and desert of the crawler all day long heating, ceramic heating lamp reduce equipment internal heat retention and carbonized, life for 10000 hours, similar products is more than two times, waterproof designed for use with high humidity environment. Common voltage there were 110-240 v, power 50 w 60 w 75 w, 100 w, 150 w, 200 w, Product has the heating wire buried cast type: no oxidation, resistant to impact, safety and health, not to drop coloured glaze etc.