Flashing LEDs

[Deckie]

I fitted a wall light with two 4w G9 LED dimmable bulbs and connected it to a dimmer switch. When I turned the dimmer switch on and faded it up the lights came on but above a certain brightness they flash (not flickering, they alternately flash about once a second). When I dim them again they glow steadily when it reaches about half way. I’ve never seen this happen before, is it due to the bulbs or the dimmer switch? Should I change the bulbs to halogen?

 

[NozSpark]

I’m afraid the LED dimmable lamps will need a LED compatible dimmer switch, they pretty much always don’t work correctly with older dimmers