Poor quality Indian light switches

I'm fed up with changing light switches on my Series 2 Lambretta, but it seems I can't buy one anywhere that isn't one of those crappy Indian ones. All the other Lambretta models seem to be catered for by more expensive and quality items, but not the Series 2. This week I tried to fit a new switch after my previous one failed, but it broke while I was fitting it - the purple wire fell out. Another hour wasted.