e.g. ELT12AC11ESDL
These lamps are suitable for use only with magnetic type transformers (iron core ) with an output current frequency of 50Hz.
Please note that these lamps operate on a frequency of 50 Hz only. Most magnetic transformers are 50Hz as electronic transformers have an output of 40,000 to 60,000Hz and are suitable for halogen type lamps only.
The use of any electronic transformer is not recommended. No warranty on lamp will apply if used with an electronic transformer.