The light bulb and heat cover were used for a short period, but I am selling them because I will be using different ones. A new light bulb is also included. (There will be a total of 2 light bulbs) The light bulb and heat cover currently set up have been tested and are working. They have been wiped with a wet wipe, but please understand that they are used items before purchasing. Also, please note that I cannot be responsible for initial defects in the new light bulb. I will take measures to prevent water damage and ship via Yu-Packet Plus. 20W heat bulb for small animals and birds, designed with safety in mind, with a cover. - Product Name: Heat Bulb 20W - Voltage: 100V/20W - Cover: With cover - Design: Mesh design - Application: Heating for small animals and birds Thank you for looking.