After I compared the products with an already existing 10 watt spotlights, which brings the same brightness I once measured it. 2 different Stromkostenmeßgeräte show depending on the color with maximum brightness only 9-11 watts of power to. The case is indeed huge compared to 10 Watt model, but what use is that if the promised performance does not come? For the price it is then totally overpriced.
Since Amazon has shipped the product for a market place provider, we now have the running around, too bad.