Inside a failed safety lamp holder.

These lampholders are designed to disconnect power to the lamp contacts when the lamp is removed. It's to prevent kids getting a shock from an open lamp holder. Thankfully eBay, wish and amazon have addressed this by supplying lamps with live connections all over the outside.

This one had failed in manner that caused random arcing and flickering of the lamp. I thought it would be interesting to see what had failed, and the general internal construction of the holder.

It's worth noting that modern lamps pose much less thermal stress on traditional lamp holders. But it wouldn't surprise me if they start making cost-optimised "LED-only" lamp holders.

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