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the living room has 12 downlights, or 1 curly bulb in a standard fitting, therefore it does add up standard light fittings radiate in all directions downlights go down, the narrower the beam, the less effective it is

downlights, architect pleasing, architecturally stupid, housefire starting, inefficient, stupid products, 12*55 Watt lights to provide the same light as one 13 Watt curly bulb rant rant rant