The FTS-SK2 is designed specifically for an obsolete Luxeon LED. This lens is not compatible with the Rebel line of LEDs. We are no longer stocking the FTS-SK2, however it is still available to order.

To get the best optical performance from the Fraen K2 lens, the lens must be set at a specific distance away from the Luxeon LED. In order to achieve this position, this Fraen ring spacer needs to be placed between the LED and the lens.

This spacer ring is specifically designed for K2 lenses and LEDs.