Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! HIGH QUALITY GLASS MATERIALThe E27 heating light bulb for reptile made of high quality glass material,which is durable and resistant to aging. It can accompany your pets health and success for a long time. PROMOTE CALCIUM ABSORPTIONThis daylight bulb provides 97% UVA to stimulate reptile's appetite, enhace body temperature and help to digest and 3% UVB promote vitamin D3 synthesis, absorb calcium. EASY TO INSTALLThis ceramic heating lamp is very easy to install. Just screw it into the standard E27 ceramic screw. It is easy to use even if you have never installed it before. It is very suitable for pets, chicken coops, chickens, and tortoises. LOW POWER CONSUMPTIONThe reptile heating light bulb has low power consumption, eco-friendly and long life service. Promote pet's appetite and help digestion to maintain nutritionally balanced growth. SCOPE OF APPLICATIONUnder the condition of full spectrum light source, animal has bright hair color. The red band of full spectrum light can promote the rate of blood circulation under the skin of animals and improve immunity.Suitable for reptile, such as tortoises, snakes, lizards, spiders, frogs etc. Material: Glass Power: 25w Voltage: AC 220V Lamp Base: E27 Length: approx.6cm/2.4in, Diameter:5cm/2.0in Weight: Approx.55g/1.9oz