Having had experience of this...
Are IP65 downlights IP65 rated only from the exposed front or the entire unit? My utility room ceiling is underneath a bathroom, the external wiring aside, would an IP65 rated light have continued to function while slightly wet or would water easily ingress from the back?
On a different point, why do downlighters need to be fire-rated but pendants not when a pendant quite often has an inch-sized whole behind it for cables?
Are IP65 downlights IP65 rated only from the exposed front or the entire unit? My utility room ceiling is underneath a bathroom, the external wiring aside, would an IP65 rated light have continued to function while slightly wet or would water easily ingress from the back?
On a different point, why do downlighters need to be fire-rated but pendants not when a pendant quite often has an inch-sized whole behind it for cables?