Feature:1. [4 Gear Speed] 1 gear: 77 to 86mm per minute, 2 gear: 115 to 121mm per minute, 3 gear 152 to 158mm per minute, 4 gear 190 to 196mm per minute. Whether for professional engineering installations or home DIY projects, there is a suitable speed for you.2. [Auto Retract System] The motor design of this electric caulking gun features an automatic retraction system, preventing material leakage when the gun is stopped.3. [Built in LED Light] The integrated LED light is a great feature when working in attics, crawl spaces, garages, or other dark areas, provides sufficient brightness to keep track of the flow of caulk and joints.4. [Efficient Professional Use] When used in professional settings, with the highest speed setting, you can finish a caulk tube in about 2 minutes, greatly improving work efficiency.5. [Versatile Applications] Suitable for home renovations, kitchen countertops, shower installations, floor repairs, and grouting, this caulking gun provides a reliable and efficient solution for various projects.Specification:Item Type: Cordless Caulking GunMaterial: ABSBattery: 20V lithium battery x 1, battery capacity: 2mAh (shipped with matching battery)Working Current: 1ALED Light Current: 200mALED Luminous Flux: 400-450LMWork Pressure: 250kgsWorking Time: 240 minutesLED Color Temperature: 6000-6500KLED Display Screen: 70-75Ra.Package List:1 x Cordless Caulking Gun1 x Battery1 x Adapter1 x User Manual