Product description Size: metal gooseneck up to 30cm The bulb head is 36mm wide and 57mm long Colour: Black Material: glass metal Package content: 1pcs thermostat lamp 1.【Full Spectrum Halogen】： 3.0 Light Bulb Simulate exposure to sunlight to provide your pet with the heat needed to grow. Promote the formation of D3 and help pets to fully absorb calcium. 2.【stay healthy】：Provides important UVB and UVA rays to reptiles and turtles. Helps Solve metabolic bone disease. 3.【Flexible use】：Lamp head can be rotated 360 degrees up / down / left / right the highly flexible metal gooseneck is up to 30 cm long and can bend and twist in any direction. 4.【high safety】：Ceramic lamp head has a high temperature resistance and ensures high safety. (Note that the distance between the lamp and the pet is at least 12 inches). 5.【High compatibility】Ceramic socket can be used with halogen lamp heater infrared transmitter etc. Suitable for reptiles amphibians birds fish mammals etc.