RKT 470nF, 0.47uf (474J) Film, Paper Capacitors +/-5% 400V - 450V, Pack of 10

Bohot accha product he mene is se led jhalar ka circuit banaya he accha work kar raha he

I made a very simple circuit with 2 of them and both are not working whereas I have created the same circuit with same valued capacitor purchased from different source and it is working perfectly