1. Rated operational voltage：DC   10V—16V
2. Rated total working current：DC   1.8A
3. Maximum operating voltage：DC  24V   lasting for up to 1 hour
4. Excess working voltage：DC  18V  lasting for up to 1 hour
5. Continuous operating time≥24hours，current fluctuation≤±2mA
6. Maximum surface temperature（shell）≤40℃（at ambient temperature of 20℃）
7.Maximum size(L*W*H):180mm*38mm*21mm