These are probably good bulbs, but MAKE SURE YOU CHOOSE THE RIGHT VOLTAGE! I didn't realise that the voltage of these bulbs is 220V, instead of the -what I assumed was standard- 12V! So these bulbs didn't work in my lamp with 12V output. At first I thought the bulbs were defective. But after communication about this issue with seller it turned out to be the wrong voltage for my lamp.
Really not flicking leds. Not bad.