excellent lamp, batches with errors

Very bright LED bulb with very good light color, almost indistinguishable from halogen (Although I prefer the version with 40 ° beam angle. Performance specifications are exactly because nothing is cheating or fined, as in many others.

However, the first purchased batch fell after a relatively short time in succession. Cause is obviously a technological or konstruiktives problem in internal structure. Through the constant expansion changes in warming the connector between LED circuit board and power supply will be demolished by the soldering pads. A soldering wires helped permanently. Later batches were probably revised, because of this all still function properly.