Disassembled 7-watt LED light bulb (470lm) manufactured by NEONLITE ELECTRONIC & LIGHTING Ltd. Bad quality product for low price 5€. There were found out next properties during examination: *Advantages: **power supply is equipped by LC filter - flickerings are totally missing *Disadvantages: **cosφ=0.491 **device is equipped by smallest possible heat sink arounded by PVC-body, which reduces lifetime