The IQ-X from busch+müller.
With its brand-new, state-of-the-art optics, the IQ-X from busch+müller has made it possible, for the first time ever, to break the 100 Lux barrier for Dynamo Headlights. As if this were not enough, this high-end headlight emits an extremely wide beam pattern that is superbly even, bright, and wide. Paired to this technology comes an attractive design. The quality CNC alloy housing doubles as a heat sink and is available in black or silver. Side visibility is ensured through light emitted via the lateral slits in the housing. The easy-to-use switch is embedded in a ring of blue light at the rear of the housing.
Sensor-controlled Day Ride Light, stand light, and a flexible bracket guide are standard features on this top-class light. For technical reasons, the IQ-X is only conditionally compatible with the USB-Werk. The internal battery of the USB-Werk discharges even if no end device is connected. Part of the dynamo power is needed for recharging, which can lead to light fluctuations on the IQ-X.
Dynamo headlight
- 100 Lux
- Extensive light field
- Daytime running light and standlight
- Light at close range
- Sensor automatic
- Switch ON/OFF


