LED bulb flickering question

Hello everyone, I recently bought 12 x 1.3w LED G4 bulbs to replace the 12 x 10w halogen bulbs in my kitchen light, I fitted them today but only 11 light up and they all flicker. I've swapped the bulbs about to confirm the bulb and light fitting itself is working so now I need help on how to solve it, do I just need a transformer to go between the wiring and light or something else?

thanks in advance!