Quantity   Component name
2 × cheap chinese LED light ; 9,50 Eur <a target="_blank" rel="noopener noreferrer" href="http://www.amazon.de/gp/product/B00GWZ23B6">http://www.amazon.de/gp/product/B00GWZ23B6</a>
1 × 1500mm shelf rail ; 2 Eur from local hardware store
2 × cigarette lighter cable /w switch + fuse ; 2,60 Eur <a target="_blank" rel="noopener noreferrer" href="http://www.amazon.de/gp/product/B00EE5EQ1G">http://www.amazon.de/gp/product/B00EE5EQ1G</a>
4 × nut, M3
4 × bolt, M3
4 × washer, M3
1 × approx 13 Eur per unit
1 × 1 hour work time