Uwell Crown 5 Replacement Coils (4-PK)UWELL CROWN 5 REPLACEMENT COILS (4 PACK) Crown 5 Mesh Coil is applicable to Crown 5 Tank. There are 3 types of mesh coil available: 0. 23ohm single coil, 0. 3ohm dual coil and 0. 2ohm triple coil. The 0. 23ohm single mesh coil(pre installed) is best for 65 70W, giving you smoothest direct to lung vape and rich flavor. And the 0. 3ohm dual mesh coil(included) is best for 50 55W, suitable for a restricted direct to lung vape, providing warmer vapor and