Pure Uv Light AIR Purifier for Ac HVAC Coil 120v Plug-in 14" Germicidal Bulb with Magnet 120v plug-in Power supply 14" Uv light germicidal bulb - 16.75" Total with magnet assembled. OZONE FREE! 254NM, Magnetic bracket for easy installation It can be installed above or under the evaporator coil- see images. Replacement bulb available https://www.amazon.com/dp/B01GNEO4XK