Shop Now! Uwell Valyrian Tank 5ml and Efest Pro C1 Charger Uwell Valyrian Atomizer with 5ml e-juice capacity and topp filling. Uwell Valyrian has three types of pin compatible for different airflow and flavor. You can change the different types of pin to fit for different wattage. The 0.15ohm coil use quad coil with parallel leg wire, will bring you more stable and batter flavor. The Efest PRO C1 is a compact single-cell lithium ion battery charger. This charger is compatible with 3.6V/3.7V cylindrical lithium batteries ranging in size from 10440 to 26650.