RSL-LMS offers a steady LED light with high optical performance. Its modular design and simple functionality are the right choice for a basic stack light application. RSL-LMS-F consists of a colored fresnel lens with a colored light source. The use of a colored lens with the same colored light source allows optimization of the emission frequency, producing a rich intense light output. RSL-LMS-O consists of an opaque colored lens with a colored light source. The opaque characteristic allows an optimally diffused light without disturbing the operator.