Compatible with: For Mr. Heater F274800 (including for Mr. Heater MH18B series and for Mr. Heater Portable Big Buddy Propane Heater); For Mr. Heater F274830 MH18BRV F274865. Alternate power source in lieu of D-size batteries. 6v/800mA power adapter. Cord Length: 6.7 FT (2.05m ). Plugs into any standard 110 volt outlet.
