This mod features precise craftsmanship on the classic billet aluminum box with the signature potentiometer adjustment while integrating a powerful proprietary chip. It is built with heavy-duty aluminum, which is an extremely durable material that also maintains a high-quality finish. The screen-less design creates a simple and battery-efficient platform, in which users adjust the output voltage from the potentiometer adjustments that work in synergy with the oversized firing button. The flush magnetized battery door for the dual 18650 platform (batteries sold separately) implements ULTEM injection molded sled with spring-loaded solid brass contacts for superior conductivity. This device has a maximum output of 180W and is capable of running as high as 30 Amps. This is a super high-quality device, you will not be disappointed. Batteries not included. See details below.