Quantity   Component name
3 × 10W LEDs 65cents per LED (in 10 Pack from china)
1 × LX6009 DC/DC Booster 1,10€ (in 10 Pack from china)
1 × Project Enclosure I used a mint box similar to altoids
1 × Dual switch Local Electronics store, 1,50
1 × Adapter for External power 2,50 in local Electronics store
1 × Cables and adapter for 9V Local Electronicsstore
1 × Plexiglas for Case
1 × HotGlue