Beneficial to Reptile Health - Produces natural long-wave infrared heat, penetrates reptile skin, promotes blood circulation, increases pets vitality and maintains health. No light emitted --- The bulb reptile thermal does not disrupt the normal sleeping patterns of reptiles, coops and outdoor pets. Available for daily use. Easy to replace and install --- This ceramic heat bulb is simple and easy to install, just screw it into a standard porcelain E27 screw socket (ATTENTION: use it only with porcelain socket, because the plastic socket may melt the lamp holder). Good insulation effect --- This black infrared lamp is made of strong ceramic, water-resistant and waterproof, durable Shock resistant, suitable for humid environments. Keep reptiles warm in the cold season, avoid getting sick and help grow. Long lifespan --- This black ceramic heat emitter is the ideal 24-hour heat source for reptiles and amphibians. It could last 20,000 hours or even longer. Ideal for pets, chicken coop, lizard, turtle, birds, snake, chameleon, bearded dragon.