small solar charge controller 1. 1amp, 3amp, 5amp, 10amp, 15amp, 20amp 2. Timer; Light controlled automatically small solar charge controller 3ampOperating voltage (automatic recognition):12V/6VOperating current: 3A Load current: 3ALow-voltage disconnection: 10.8VOvercharge disconnection: 14.4VController oneself consume: 10mAPermitted operating temperature range:-20°C to +80°C