Up-and-down luminaire
The Illustrated Guide to Electrical Building Services, Third Edition (BG 32/2014), by David Bleicher & Peter Tse, published by BSRIA in 2014, states, up-and-down luminaires (or direct-indirect luminaires): ‘…combine direct or downlighting from the reflector with indirect or up-lighting from the same or an additional light source.’
--BSRIA
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