Hi Guys !
Here you have some picts of my first light modification.
Original light : 4,5 V
Modified light and back side
Inside, we have :
1 holder for 3 18650
3 Li 18650 (from computer battery)
1 driver from Kaydomain
1 cooler from Aliexpress
1 carlo optic from Dotlight
And a peace of copper as braket for the star and the driver
Sorry for size of picts : I don't know how to reduce it.
If any one know how to do it easely, please tell me.