Leica's LED Ring Light was designed for use with the A60 microscope, but it will fit with any Leica microscope that has a 58mm lens. This includes the S6, S7, and S9 series microscopes.
This light comes standard with a diffuser that helps reduce spots of light from the individual LEDs. The Leica Polarizer, used for dialing out glare from shiny surfaces and gems, also works with this light and is sold separately.
Leica's warranty is for one year on electronic components.