The rechargeable version of the Olight X7, the X7R Marauder has a maximum outout of 1,200 lumens and charging it will require the USB Type C for fast charging. It has a twist to open and close charging port cover which makes it wateproof. Another nice feature is the Proximity sensor that drops the output automatically when approaching a nearby object. It also has an active thermal management system. Bruce of BB2K Airsoft tells us more about this product.