The testing pack of THOTH replacement coils comes with 5 different ohms (0.4ohm/0.6ohm/0.8ohm/1.0ohm/1.2ohm) for you to test and pick the right resistance that you prefer. Brand: Kumiho Wattage Range: 0.4ohm: 25W-35W 0.6ohm: 20W-25W 0.8ohm: 16W-20W 1.0ohm: 12W-15W 1.2ohm: 10W-12W Unit: 5pcs/pack Package: Simple Packing