Disassembled 8-watt LED light bulb (600lm) manufactured by Panasonic Corporation. Tolerable quality for 11€. There were found out next properties during examination: *Advantages: ** very good heat heat dissipation: I couldn't melt soldering alloy even applying +500°C *Disadvantages: ** cosφ=0.59, but manufacturer specified A+ energy class ** intermediate level of flickering, cause capacitor is only 33μF