Features:• M1 0.15Ω- Rated for 70 Watts • M2 0.16Ω - Rated for 70 Watts • M-Triple Mesh 0.15Ω - Rated for 80 Watts • M-Dual Mesh 0.38Ω - Rated for 80 Watts • M1+ 0.16Ω - Rated for 75 Watts