1).Knapsack sprayer model: 3WBD-16LA 2). Battery charge specification:Input voltage: 220V-50Hz  Output voltage:DC13.5-14.4V 3). Electric power: 12V 25W 4). Working pressure: 0.15-0.4MPA 5). Tank capacity: 16L 6). Flow:1.2-1.8L/min, but It depended on the nozzle types. 7). Net Weight: 5.3KG 8). Dimension:38cm×19cm×51cm