UWELL Whirl 22 Starter Kit is powered by built-in 1600mAh battery, with 25W max wattage output. Operated through a single button, the LED light indicator flashes to tell you its working conditions. The Tank has a 2ml juice capacity and the knurled top cap is made for ease of top e-liquid refilling. Two 0.6ohm coils are included and each one supports vaping of around eight tanks of e-liquid. For simple coil replacement, a plug-pull design is adopted. In a word, Whirl 22 Kit is a great choice for amazing mouth to lung and restricted direct lung vaping.