Product function description: 1:Automatically sleep after 15 minutes, to protect the lift of the soldering iron tip. 2:temperature reach 480 in 1 minute, build in PID system equipped. 3:180-480(356-896)range to adjust temperature by button. operate easily. 4:products use LED display design. Specifications: Model:Handskit- 927(80w) Sleep mode:Automatic sleep after 15 minutes Voltage:AC(110V/220V) Temperature range:180-480 Temperature stability: about 2 Temperatrure offset range:about 99 Temperature unit:/F Heater:Four-core PTC ceramic heater Display:Blue LED N.W: 140g Sleep Mode: Automatically sleep after 15 minutes, protect the life of the soldering iron tip Fast warm-up: temperature reach 480 in minute, build in PID equipped Auto-sleep function on/off: in the off mode, press and hold the + or - button to enter the sleep on/off setting, press the +- button to switch, and there is no button for three seconds, it will automatically save and exit; shorts press the power button to enter the normal state. Adjust temperature: adjust temperature from 180 -480 Protective cap: when you finished it please cover safety heat resistant cap