Sylvania e27 hsi mp metalarc ndlhigh output quartz metal halide lamp for use in open lights it impresses with its excellent colour throughout its entire lifeusage areas display light in shops public areas such as lobbies banks and airport terminals offices floodlighting elliptical shape compact dimensions single ended e27 design enables maximum freedom for the designer light long lifespan of up to 15 000 hours clear or coated surface keeping it on continuously is not advisable t