Name: Electric Hot Melt Glue Voltage 21V, preheating time 1-2 minutes. Nozzle Material: Copper. Glue stick diameter: 11mm. Accessories: 10pcs Glue Sticks. Max.temperature: 280 Cordless Rechargeable lithium battery, compact and easy to use. Warning: Verify the battery switch alignment with solder points and battery connected before applying power (activation/charging/setup) to avoid board damage. MeshSolar requires a 20V charger for activation. If a 20V charger is , a compatible 20V power adapter can be purchased separately. NOTE: USB PD 3.0 charging requires a PD 20V charger, PD 20V charger not included. It adopts copper glue nozzle for smooth and continuous glue outlet, and rust-proof, and the nozzle guard sleeve is designed to avoid scald. Ceramic thermal element, heating and lengthening the heating element to achieve rapid temperature rise, truly achieve rapid temperature rise, and truly achieve rapid glue release. Built-in trigger push device, in line with people's habit when operating the switch. Intelligent chip escort, built-in chip control, control the heating temperature within a suitable range, and place overheating. Suitable for plastics, metals, wood, paper, toys, furniture, leather, DIY and other purposes. Adapted to 18V battery: compatible for 18V B series lithium battery,such as BL1850B(197285-8),BL1840B(197270-1),BL1830B(197602-2),BL1430B(197618-7),BL1820B(197487-6); compatible for BL1850,BL1840,BL1440(196391-6),BL1415(194560-3),BL1815N(196781-3); x NOT compatible for G Series battery such as BL1813G(196663-9) BL1413G(196882-7) BL1415G BL1430G BL1815G and so on x NOT compatible for 18v Ni-CD battery such as 1822(194465-7) (Batteries not included) Color: As Shown Material: Plastic + Copper Package Contents: 1 * cordless glue 10 * glue sticks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.