Just a load of fluorescent tubes - or deep and meaningful art? It's easy to scoff at Dan Flavin's light works, but the Hayward's retrospective looks at the science too.
The gallery boasts that this is the first comprehensive exhibition of the work of Dan Flavin, who died a decade ago. More than half the 50 works in the show are on display for the first time in the UK.
Many of Flavin's sketches are included, which may help to pursuade sceptics that there is more to his installations than a random arrangement of tubes.
• The exhibition continues at the Hayward Gallery until Sunday 2 April
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