The Geek Vape Aegis Boost and Hero replacement coils offers five 0.4-ohm KA1 Mesh Coils geared for DTL use rated for power between 25W to 33W. Thanks to the mesh coils distinctive architecture that increases the surface area, the Aegis Boost Replacement Coils promote mesmerizing flavor profiles and intensely acute nuances. As well, these KA1 Mesh Coils are far more efficient than standard coils, requiring less power to achieve desirable performance.