3pcs DC DC 8.5 48V To 10 50V 10A 250W Continuous Adjustable High Power Boost Power Module Constant Voltage Constant Current Non Isolation Step Up Board For Vehicle Laptop Power LED Driver 3pcs DC DC 8.5 48V To 10 50V 10A 250W Continuous Adjustable High Power Boost Power Module Constant Voltage Constant Current Non Isolation Step Up Board For Vehicle Laptop Power LED Driver | 1250932 Price: USD 20.99