Luminous efficiency and Farbtemperatue well but .....

Unfortunately, I have a lamp return as a pen almost dangling loose on the circuit board! Also falls on to introduce the pins into the lamp socket are partially different lengths and slightly shorter than the halogen bulbs used previously!

Man (n) could be here with a soldering iron may itself help (cut with halogen lamps and LEDs with solder), but I'll send the defective part back!

Conclusion: If the light brightness for years remains the same aand not turn individual LEDs, it would be a great energy-saving halogen replacement (for 20 watts)! However, this remains to be seen especially when you see the quality of the contact pins!