Powerful 6500N Output: This electric caulking gun features a reinforced rubber push plate, delivering an impressive 6500N force for smooth, even adhesive application. The sandblasted friction surfaces provides enhanced control, ensuring precise sealing and strong bonding every time. Dual Lithium Batteries: With two 21V lithium batteries, this caulking gun fully recharges in just 30 minutes. After charging, it dispenses between 300 to 600ml or 10.5 to 21 ounces of glue, allowing for continuous operation without interruptions. Enhanced Performance: Tailor your workflow with the 6-speed adjustable setting, allowing flow rates from 0 to 21 inchess per minute. The built-in bright LED light provides excellent visibility in low-light conditions, enabling you to work efficiently. Anti-Drip Technology: Featuring an automatic retract mechanism for the plunging rod, this caulking gun significantly reduces adhesive drips, keeping your workspace clean. Its compact design and ergonomic handle ensure comfortable use even during extended tasks. Versatile Use: Ideals for sealing a variety of materials including glass, ceramics, sanitary ware, and kitchen fixtures, this caulking gun is perfect for filling gaps and cracks in doors, windowss, toilets, and walls, making it an essential tool for all your adhesive projects.