The Squid Industries Double Barrel V3 is the newest version featuring the popular Double Barrel chassis. It's made from a high-quality alloy and has a 0.47" LCD screen. Dual high-amp 18650 batteries are loaded up via a hinged bottom-loaded battery door. Dimensions: 92mm x 43mm x 25mm Wattage Output Range: 5-150W Variable Voltage Knob Superior Stainless Steel Chassis Construction Hinged Bottom-Loaded Battery Door 0.47" OLED Display Screen - Top Mount Single Multi-Functional Operation Button - Voltage Adjustment Reverse Polarity Protection Overheat Protection Short Circuit Protection