I have two of these BT-20 setups and also the Magicshine. For the money, the clones and Magicshine are good especially if one lives in a concrete apartment and fire hazards are less of a personal consideration.

Prefer the Fenix running Panasonic 3400AH 18650 batteries. Nitecore Intellicharger. Carrying spares is easy.

I also have 14.4 AH pack of 4S2P Panasonic batteries. Only weighs 400g and will run Fenix for an anticipated 30 hours on the medium setting. Probably overkill.