Household electric 120volt :) While perfect for annealing torch work beads this kiln is also an excellent fusing kiln for smaller projects. The kiln comes standard with a side hinged door and bead door. Both doors come with wooden handles which are mounted away from the heat and allow you to open them without gloves. The GlassMaster controller is also standard on this unit. The accurate and stable temperature provided by the controller is perfect for annealing. Extremely portable and works on standard household current. GlassMaster Control Side Opening Door 10x9 opening 9 inch depth With Bead Door Works on standard household current Ecapsulated Type K Thermocouple Built-in Stand Portable