1:no smoke , no pollution 2:constant temperature 3:PTC heating 4:used for convenience 5:energy conservation Detailed Product Description:Feature:1:no smoke , no pollution2:constant temperature3:PTC heating4:used for convenience5:energy conservation any customer's require, temperature in 50°c to 310°c among design, used for voltage can seting in 5V to 240V among design. modlespecification[L*W*H( ...