1. Product: PTC Heater, PTC for heating 2. Type & Dimension: (mm) Rectangle type: 35*13, 35*10, 35*6, 35*5, 24*15, 24*10, 10*3 Circle type: 20, 15, 13, 12, 10 3. Thickness: 1-5mm 4. Voltage: 24V, 110V, 120V, 220V, 230V 5. Feater: 1) Surface temperature can be controlled 2) Can be used for heating liquid 3) Can be used for heating air with fan blowing 4) Four electrodes coating to be selected: Neckel+silver, melt-jet aluminum, screen print aluminum, Screen print aluminum+silver. 5)Long life, 10 years or above, high reliable. 6. No wire, insulator, or shell for this type. 7. Application: Dryer, air heater, mosquito killer, humidifier, heating-plate, massager, physical therapy machine, hot glue-gun, hair crimper, hair straightener, coffee warmer, water boiler, Mosquito killer.