I use a lot of those Click Flow connectors....very well thought out product
i also use the Click Inceptor and Inceptor micro...all complete with the connector.
another favourite is the PAL ALL in one fitting...dimmable, IP, 4 bezels, onboard switchable between CW,DW,WW very handy when customer changes their mind. Also means I only need to stock one fitting to cover all,options