Uwell Crown V (5) 0.23ohm UN2 Meshed-H Coils – Pack of 4 (Nicotine Free). Health warning – CONTAINS NO NICOTINE – applies only when the device is used vape juice that contains nicotine. Child safety warning – Keep this product out of the reach of children – Not suitable for use by anyone under the age of 18. The 0.23ohm single mesh coil provides excellent, smooth flavour with impressive cloud production. We recommend using this coil on a power output of 65-70W.