Eleaf HW1 Single Cylinder SS316L 0.2ohm Atomizer Head for Variable Wattage or SS316L TC Mode:
Designed for: 40 - 80W
Manufacturer's Recommended Wattage Range: 50 - 65W

Eleaf HW2 Dual Cylinder Kanthal 0.3ohm Atomizer Head for Variable Wattage:
Designed for: 30 - 70W
Manufacturer's Recommended Wattage Range: 45 - 65W