The GeekVape Aegis Legend 200W Box Mod is the second variant of the epic Aegis series, integrating an updated body to accommodate dual 18650 batteries and increases maximum power output to 200W with the intelligent AS Chip. Maintaining the high-level of shock-absorbency and withstanding dirty environment, the Aegis Legend 200W Box Mod is constructed with die-cast aluminum alloy frame, advanced LSR Injection Molding technology, ergonomic leather grip, and carbon steel battery door cover. The battery section is bottom-loaded, allowing for easy installation of dual high-amp 18650 batteries via a hinged lock mechanism for proper security . A rocker-inspired firing button in a trigger-style structure provides user-friendly operation, with a full-color O-LED display screen for organized informational readouts. The Aegis Legend has a maximum wattage output of 200W, and several output modes, such as: Power Wattage, VPC, TC-TCR, and BYPASS Mode. Under temperature control setting, it has Temperature Coefficient of Resistance (TCR) setting, a proprietary technology to adjust resistance of a wide range of heating elements to different ranges.