20W Handheld Direct Heat Sealer KF-772DH with Hi/Lo Temp Setting for Sealing Plastic ClamShell Packages and Containers EASY TO OPERATE: Lightweight. Set the temperature, place the clamshell in between and press down FAST AND FIRM: Forms a tight spot weld to firmly lock down clam shell packages, all within seconds DUAL TEMPERATURE: 2 temperatures (180 and 210 degree C or 356 and 410 degree F) setting DUAL VOLTAGES: Two-pronged power supply of dual world voltage 110-240V with 5-1/2 ft. cord BEYOND CLAMSHELL: Suitable for sealing thicker materials and rPET, OPS, PSP, PVC, and EPS