I pulled up the Wurkkos TS70 review and output. 5500 lumens from a 6 volt Cree XHP70.2 is about 10 amps. This may help as the LED is driven past the Cree charts LED test / review - Cree XLamp XHP70.2 P2 40E (4000 K) - The second generation of extreme overcurrent and light flux capability?