- Measured lumen value: 205 lm
- Input voltage: 5 - 21 V DC
- Lens type: Terraflux 2
- Illuminant: Power LED
- L x W x H: 49 x 41 x 41 mm
- Housing: Aluminium 6061
- Weight: 75 g without bracket
- Colour: Matte Black
- Warranty: 5 years
- Cable length to battery: 1080 mm
- Compatible with Bosch aktive and Performance Line (not compatible with Bosch classic model)
- Bosch connecting cables not included
Supernova go to great lengths to continually improve their lights and this front light is a good example. They're particularly proud of the V521s front light. Based on the popular V6s housing, its been equipped with all new, versatile electronics that works flawlessly on 5 V USB power and on 6 V or 12 V E-Bike ports. The soft start increases the brightness constancy of the LED. Supernova's revolutionary thermal core technology guides the heat of the LED directly to the cooling fins at the rear. This keep the LED at a low temperature and ensures consistent light intensity at the highest level.
TERRAFLUX2 - Supernovas Best Lens To Date:
After many years of development and improvements, the new Supernova TERRAFLUX2 lens now surpasses even the high demands of German road regulations. The TERRAFLUX2 technology is capable of guiding over 90% of the light beam onto the ground with greatest efficiency. This means that a considerably greater portion of the light can be used to illuminate the road ahead than with standard lenses. By optimizing the production parameters, Supernova have achieved an excellent homogeneous beam shape with an outstanding, far reaching light that has an unparalleled side illumination as well. The Terraflux2 lens is used in several Supernova lights. Its brilliance is an important part of the quality that makes Supernova lights special.
The Complex Production Method Explained:
The Supernova TERRAFLUX2 lenses are produced with an additional complex process of added holding pressure after the commonly employed injection of the molten PMMA material with up to 6500 psi. A die integrated into the tool exerts a high and uniform pressure directly onto the light exit surface of the lens while the molten mass is still liquid or while the temperature is still above the yield point. This allows Supernova to achieve a very homogeneous stress distribution inside the component, which gives the TERRAFLUX2 lens its excellent quality.
Daytime Running Light:
Many accidents happen because cyclists are being overlooked during daytime. A strong daytime running light can prevent this, so Supernova recommend riding with lights on at all times. The energy efficient V521s make this very easy. With its integrated daytime running light it improves your visibility at any time of day.