In real projects, the layout of a store or gallery is often not fixed; the season changes, the product changes, and the lighting requirements change accordingly. In the fixed-angle models of the Ronica family, this means that for a new lighting requirement, the luminaire must be replaced with a different model. The RN21 solves this problem: with an internal zoom lens, it is possible to manually adjust the beam angle between 15 and 50 degrees on the same luminaire. For a store that constantly changes the display layout, or for a space whose final lighting requirements are not yet known, this means a one-time investment, for a wide range of lighting scenarios.

Technical honesty requires that this be stated: the luminous efficiency of the RN21 is around 50 lumens per watt — half the efficiency of the fixed-angle models of the Ronica family (which reach 100 lumens per watt). This drop is the natural cost of the zoom mechanism; The moving lenses inside the zoom lens always absorb or scatter a portion of the light compared to a simple, fixed lens or reflector. In other words, the RN21 trades flexibility for pure optical efficiency — a choice that makes sense for spaces with variable layouts, but for a project that requires a fixed, defined angle from the start, the single-angle models in the family (such as the RN01 or RN11) will be a more energy-efficient option.

In terms of physical construction, the zoom mechanism inside the body makes the RN21 the largest and heaviest member of the Ronika family: at 380 mm long and 1.5 kg, it is clearly heavier than the fixed-angle models — which is natural, since a significant part of this volume is taken up by the angle adjustment mechanism itself. Its aluminum body and matte black finish are identical to the rest of the family, and visually it maintains its visual coherence alongside other models on a rail. This product is manufactured in the Alton Ray factory and comes with a 5-year warranty and free shipping nationwide.