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 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. stay healthyProvides important UVB and UVA rays to reptiles and turtles. Helps Solve metabolic bone disease. Flexible useLamp 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. high safetyCeramic 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). High compatibilityCeramic socket can be used with halogen lamp, heater, infrared transmitter, etc. Suitable for reptiles, amphibians, birds, fish, mammals etc.