The Sigelei J150 is the larger version of the Sigelei J80 which features a higher wattage output and expanded temperature control modes. The Sigelei J150 can fire up to 150 watts. The Sigelei J150 features a built-in 2000mAh battery that may be charged via the micro USB charging port. The Sigelei J150 supports Nickel 200, Titanium, Stainless Steel, TCR and TFR temperature control modes. The Sigelei J150 features a smooth zinc alloy construction with a tactile diamond shaped fire button. An on and off toggle switch is located on the side of the device designed for both easy access and for your convenience.