... melt glue gun can use nomally in 100V to 240V electrical,inside place the fuse,use more safe.2.The heater ... tail.sent to the gun tube.Plug the glue gun electrical outlet to preheating from 5 to 8 mintes.button up to ... gun doesn't work continuously for 15minutes.please unplug the electrical.In order to prevent the melts glue to pour from ...