The SONdelux is the first hub dynamo generator that is specially designed to match with modern LED-headlights (such as Edelux and B&M Cyo). The advantages of an LED over a halogen bulb is that they are highly efficient at low power.
This is why it is no longer necessary to build a dynamo in such a way for it to give its nominal wattage at the lowest possible speed already. The SONdelux is therefore smaller and lighter than a hub dynamo that is made for a halogen lighting system (SON 28).
The no-load losses decrease when compared with the SON 28 (the most smooth-running standard hub dynamo at present) by 30 to 35%. With lights switched on, using the SONdelux saves about 1 watt of drive power. You can still reach 80 lux with the Edelux at high speeds. However at 10 km/h the Edelux shines brighter than the best halogen headlights at the highest of speeds.
The SONdelux is as robust as the SON 28 with the same high-qualitiy finish. Naturally there is a 5 year guarantee, as with all Schmidt products. It is available in bright polished aluminium, anodized black or red in many different spoke drilling options. The version for disc brakes has a center lock® mount.