Aspire Zelos Mod. A compact and ergonomic vaping mod from Aspire, powered by a 2500mah built in Li-Po battery. Wattage can reach up to 50W. Variable voltage and wattage device. In addition to its precise TC settings, the new firmware ensures its wattage can also be adjusted under TC mode, with all that together in a stylish design, making the Zelos a smart choice for your vaping needs.