I need to modify the schematic below to accommodate for the change from 6 5mm IR Leds to a single 5w LED star.

5w LED Star
- Emitted Color : Infrared IR 940nm
- Viewing Angle: 135 degrees DC
- Forward Voltage (VF): 1.4V DC
- Forward Current (IF): 1400mA Maximum
- Pulse Voltage: 1.7V
- Maximum Pulse Current: 2000mA

Since this is a strobe I want to be running it at ~Pulse Current. My power supply will be a cigarette lighter outlet in a vehicle, which I believe gives out around 13.5v.

I need to modify the schematic below to accommodate for the change from 6 5mm IR Leds to a single 5w LED star.

Previous 5mm LEDs

• High output infrared LED 5mm 1.2VDC 100mA 940nm

New 5w LED Star

• Emitted Color : Infrared IR 940nm

• Viewing Angle: 135 degrees DC

• Forward Voltage (VF): 1.4V DC

• Forward Current (IF): 1400mA Maximum

• Pulse Voltage: 1.7V

• Maximum Pulse Current: 2000mA

Since this is a strobe I want to be running it at ~Pulse Current. My power supply will be a cigarette lighter outlet in a vehicle, which I believe gives out around 13.5v.