Based on the advice I have read the Lighting EVER LED strip coinciding with the matching dimmers and a transformer (ESmart Germany Universal Transformer | Power: 0 - 2.5A 30W DC12V | AC170 ~ 250V | IP67 dust and waterproof (New)) ordered. Have stuck in the living area behind the Gardinenkarniese at the ceiling the LED strip. The existing 3M adhesive tape glues excellent. The installation of transformer and dimmer box was INPUT / OUTPUT + and because of denominations - without any problems. I have expected that the luminous paint will not be "warm white" so warm and therefore ordered the dimmer. Thus, the brightness can be adjusted well to give (rather bright and cool) LED light well to the needs, whether soft or bright, can adjust the typical. A highly effective and appealing lighting system. Charges Free delivery of Lighting EVER LED and Lighting EVER RF Dimmer by Amazon = 5 points, separate delivery of the transformer = satisfactory, despite shipping costs to Austria.