Subjecting the tube to asymmetric current flow, effectively operates it under a DC bias, and causes asymmetric distribution of mercury ions along the tube. The localized depletion of mercury vapor pressure manifests itself as pink luminescence of the base gas in the vicinity of one of the electrodes, and the operating lifetime of the lamp may be dramatically shortened. This can be an issue with some poorly designed inverters.
Subjecting the tube to asymmetric current fl,ow, effectively operates it under a DC bias, and causes asymmetric distribution of mercury ions along the tube. The localized dep,letion of mercury vapor pressure manifests itself as pink luminescence of: the base gas in the vicinity of one of the electrodes, and the operating lifetime of the lamp may be dramatically shortened. This can be an issue with some poorly designed inverters.