ASPIRE - ZELOS 50W 2.0 KIT - $60 The Aspire Zelos 2.0 Kit consists of a Zelos 50W Box Mod and a Nautilus 2S Tank. Powered by a built-in 2500mAh battery, the Zelos Box Mod can fire up to 50W max output and supports a variety of output modes. With the 0.69 inch OLED display, you can see the operational information clearly. The Nautilus 2S Tank is compatible with 0.4ohm and 1.8ohm BVC coils which provides MTL and DL vaping experiences. The top-fill child resistant design with a silicone self-seal will keep things clean.