1. This model is a switching mode power supply for Laptop
2. This model operation at AC to DC input 110-240V, 50-60Hz, output DC seven voltages: 15V to 20V, 4A(max) output power 90W max
3. With protection functions: overload protection, short circuit protection, power supply by mains supply
4. With 8pcs(15V HG1 /16V HG2&HG3 / 18.5V HG4 / 19V HG5&HG7 / 19.5V HG8) tip connector to suit almost laptops, select output voltage to suit to laptop and make sure the polarity of tips connect correct before use
5. 15V HG1: 6.3×3.0mm, 16V HG2: 6.0×4.3mm, 16V HG3: 5.5×2.5mm, 18.5V HG4: 4.8×1.7mm, 19V HG5: 5.5×2.5mm, 19V HG7: 5.0×3.3mm, 19.5V HG8: 6.0×4.3mm