Surebonder dual-temperature black/green glue gun is ideal for crafts floral and do-it-yourself projects as different projects work best with different glue temperatures. The unit features a high and low switch -the high temperature is for better bonding to metals plastics and ceramic. Use the low-temperature setting for bonding delicate material such as lace foil ribbon floral foam and lightweight fabric. The operating temperature of the low setting is 250°F and the high setting is 380°F. (121°C and 193°C). 40-Watt 120-Volt. Uses Glue sticks of 7/16-Inch diameter and either 4-Inch or 10-Inch in length.