The Riester ri-scope® L opens a new era of high-performance and user-friendly diagnostic instruments for E.N.T. and Ophthalmology. Li-ion/LED technology used in these new high-performance instruments significantly reduce costs while improving efficiency of diagnosis. The lightweight lithium-ion battery used in the Riester ri-scope® L has an unsurpassed lifetime – with higher loading capacity and sustained high-power performance, even after well over 1000 charge cycles. A nearly unlimited lifetime with the highest luminosity are the benefits of the LED technology used with the Riester ri-scope® L. The lamp inside never gets hot, provides true-colour, even illumination of the area under examination and is guaranteed never to fail and offers a lifespan of > 10.000 hours instead of an average lifespan of Halogen/Xenon bulbs of 20 hours.