In my experience there is no one light that is good for SAR work because it depends on what you want to use the light for. For example a light which works well to illuminate at a distance might be too bright or have too much of a hot spot for effective mantracking in low light.

Most SAR folks I know carry at least 2 lights and usually one of those either has multiple intensities or multiple bulbs (either 2 different LED types or LED + Incandescant).

I have to say however that I've never used the Ritter light so I can't say what type of SAR work it would be best suited for.