I purchased this on January 25th and installed it in a gauge, but it didn't heat up enough at 20W, so I'm selling it because I'm planning to buy another heater. It's in near-new condition. I will put the main unit, instruction manual, etc. in the original box and then ship it in another box. - Type: Ceramic Heater - Wattage: 20W - Cover: With Cover - Temperature Increase: +4℃ - Mounting Method: E26 Socket Compatible Thank you for looking.