Very Important: Can't use the bulb more than 4 hours at once time , or it will burn out!!! Usually turn on light for 2~4 hours per day to remain its lifetime!!! Long time light treatment is not good for your animals.For tortoise, it will go down to the water if temperature is too hot.Do not let your animals to touch the light to avoid getting a burn. Features: UVB + UVA lamp: * For reptile pets , like tortoises terrapins lizards snake spi dersfrogsmammals and otherspets. *This lamp provides UVA UVB rays and heat:for diurnal reptiles, helping to create a paradise in reptile habitat. * UVA and heat for thermoregulation:Stimulates natural affects of sunlight to promote a healthy reptile * Focus light and heat to desired spot.:Basking lamps provide natural basking environments * Facilitates natural behavior in reptiles. Provides essential UVB 3.0 and UVA rays for reptiles. Lamp holder: * Ceramic lamp head has high temperature resistance and safety, can be clamped and hung, convenient and economical. * Can install all E27 lamp, like ceramic heater, UVA, UVB, infrared heater and so on, easy to use. * Can be rotated 360 degrees in up / down / left / right direction * Rotary switch, c an freely adjust the brightness and temperature of the lamp, safe and energy saving Hygrothermograph: * Mini desgin can put anywhere in reptile and aquarium and guage temperture and humidity. * With 1.5m proble , put the probe in terrarium and the LCD display outside to prevent your pet from overthrowing it. * Ideal product using in reptile trrrarium and aquarium fish tank and refrigerator. Specifications: Lamp: Item size: 5*5*5cmItem weight :40g 25w fit for aquarium/tank length