Power control box for 110v kilns, plug kiln into control box, and control the kilns temp. with an infinite switch. PCB-1 Uses an infinite control switch to slow the QuikFire 6 and earlier QuikFire 2 kilns. Slower firing is necessary for large, thick pieces. Simplifies enameling and fusing decals to ceramics or glass. May be used for other kilns rated to 120 volts, 15 amps.