The Geek Vape Aegis Legend 200W Box Mod is the second rendition of the epic Aegis Series, integrating an update chassis 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 Moulding 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 (sold separately) via a hinged lock mechanism for proper securement. A rocker-inspired firing button in a trigger-style structure provides user-friendly operation, with a full-color OLED 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.