Anyone know how to open outside garden light fitting?

[HannsG]

Hi guys,

I have three of these down the side of the house. All three have bulb failure and need replacing.

I thought it would be a piece of piss until I saw there was no screws!

I assume some sort of key is needed?

[HannsG]

Hmmmmm. Looks like this requires further investigation.

might and find aome sort of key prong to open them with