The Single Zone Portable (Knobbed) Temp Controller allows you to control a single article of heated clothing or a single temperature heated clothing “zone” which is created when linking 2 products (e.g., heated jacket liner and heated gloves).Gerbing Single Zone Portable (Knobbed) Temp Controller: Easily control temperature levels for ultimate comfort Knob controls ensure that your heated clothing uses only as much power as requested Digital numerical LED visual feedback Wires are UL listed and safe in all weather conditions 10-Level temperature control feature One Year Warranty Max capacity: 192 Watts (16 Amps) Note: only for use with a single rider's heated clothing system. All Gerbing installations require a for operation (sold separately) Pair with Single Controller CaseTECHNICAL SPECIFICATIONS: Level temperature feature, (10 level, 1-10; 10 displayed as “A”) Controls one heating zone Single control with knobs with numerical LED visual feedback Material: PVC & ABS Max Capacity: 16 Amps, 192 Watts Power: 12V DC to 16V DC Plug length: 24"