Osram 250w Vialox NAV-T Deluxe (UK): Full Power

1 x Osram 250w tubular clear deluxe high pressure sodium lamp at full power.
SON Deluxe lamps run at higher temperature and pressure than regular SON lamps and therefore have a slightly cooler colour temperature and a greatly increased colour rendering of 65%.
Some efficiency is sacrificed as the lamp has a slightly lower luminous output compared with regular SON.