Thank you for viewing. Includes a minimal thermostat for temperature control. It's for 40W, but I'm using a 20W bulb because it gets hot. A compact, temperature-adjustable heating device, perfect for creating a comfortable environment for your pet. I've used it for about 4 years, but there are no noticeable scratches. It will be shipped without the box, just the main unit. Please refrain from purchasing if you are overly concerned about minor details. - Type: Heating device - Power supply: AC100V - Adjustment function: Temperature adjustable - Size: Compact design - Included items: Minimal thermostat for temperature control, replacement light bulb (20W) x 1