KL Panel Intensifier Lens The KL Panel Intensifier Lens it optimized to shape the output of the fixture when a higher center intensity is required. This lens provides a 50° beam and 89° field angle and increases the center intensity by over 30%. It is an easy drop in replacement for the standard diffuser. Optimized for the KL Panel it helps utilize the fixture at longer distances or to increase output while keeping the field smooth for perfect illumination.