Our Ceramic heater is a safe,reliable and ideal production. The main uses of ceramic heater are in warm air blower of hair-iron,air-conditioner,hot melt glue gun of heater,improving look device,hairdressing device, Anion marcel hairpin, massager,electric heating,coffeepot,electric thermos,ect. All of which can use Ceramic heater as a component of reliably required electric heater. Specifications: Length x width 1) 150ohm, 220Vac. 7±0.2mm x 70±1mm 2) 150ohm, 220Vac. 10±0.5mm x 70±1mm 3) 150ohm, 220Vac. 15±0.5mm x 70±1mm 4) 150ohm, 220Vac. 20±0.5mm x 70±1mm 5) 150ohm, 220Vac. 30±0.5mm x 70±1mm Notes: 1) Voltage: 220V AC 2) Resistance: 150ohm±10% (at 23±1centigrade) 3) Operation temperature: 100centigrade-230centigrade 4) Insulation resistance: 500V DC-100mw min (at 23±1centigrade) 5) Dielectric strength: 1500V AC for 1minute (at 23±1centigrade) (or 1800VAC for 1 second) 6) The heater should go through the gage 7) Distance between the centers of each pad 8) Leads and solder tension strength: a) 5kgf pulling force b) 3kgf pulling force 9) Heater should pass 30 mins "on", 30 mins "off" for 1000 cycles test