The remote is lost, now i tryed remotes from my 3 LED Stripes, all are difrent but no one works. In Appstore i just could find some free apps that llok like my LED Remotes, but no one works. How i can find out the frequency or with app i can use thru my smartphone to get this to work?
The Lamp has an infra red (IR) controller looking at the picture in the link you supplied. You will not be able to control it directly from your smart phone (unless,that is, it has an inbuilt IR led).
With an Arduino, a resistor say 330R and an IR LED together with the IR Library, you may be lucky if you systematically try codes to see what happens.