The Swedish national amateur radio society SSA have produced a report detailing measurements taken of the RF interference generated by 11 different types of LED lamps
Only one, 38-23717, exceeded the EN 55015 limit. This has been reported to the Swedish Safety Board.
New EMC measurements on LEDs (Google English) - http://tinyurl.com/SSA-LED-EMI-2015
PDF's of the Conducted EMI Test Reports - http://www.ssa.se/sektioner/emc/led-produkter-som-ssa-anmalt-till-elsakerhetsverket/