pifco lights
Hi there, 20 lights sets push-in and screw-in use 12v 1.1w replacement bulbs however not all push-in bulbs have the same plastic collar so aren't all interchangeable.
I have a preference for the old woolworths light sets with the transparent green twisted cord and green lamp-holders, these sets were very resilient and shades/bulbs were all interchangeable - I have resurrected many old pifco lights by using the pifco shades on woolworths lights.
eBay is the best place for sourcing vintage bulbs and sets,
hope this helps,
Grant