I’m a bit surprised that no one has passed comment on this sale so I will. This is not anywhere near CE compliant or even safe in a domestic environment. Whoever manufactured this and sold it as suitable in a domestic environment should be ashamed of themselves. Not only does it need a base/bottom or whatever you would like to call it but I needs heatshrink on all the mains voltage connections ie ; the power input socket and the fusing. One or the other of those might probably be OK but to do neither is unforgivable.
Although no expert, the staple like fixings look less than ideal to me.
Until you can authenticate it’s CE credentials, I think it’s better to wait until after October 31st.