Please kindly noted that this item is sold by Texa from Joybuy marketplace. Specifications: E27 universal designed spiral lamp head which is commonly use in home. No flash and radiation with full spectrum for different environments. UVA ultraviolet light to stimulate reptile s appetite. Low energy consumption and environmental protection. It can keep your pet warm living environment in winter. 25W power is suitable for turtles jar with a length less than 50cm 50W power is suitable for turtles jar with a length less than 80cm. 75W power is suitable for turtles jar with a length less than 100cm. Item Name: Infrared Heat Emitter Bulb Optional Power: 25W 50W 75W Voltage Range: 220V (220-240V) Bulb Head: E27 Features: Energy Saving Durable Warming Light Pet Accessories Size: 5cm x 5cm/1.97 x 1.97 (Approx.) Note: Due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Infrared Heat Emitter Bulb (Other Accessories Not Include)