SL SF Bosch Purion LED Front Light for E-Bikes - StVZO - black/31.8 mm

Lupine SL SF Bosch Purion LED Front Light for E-Bikes - StVZO

Item number: 74028

With the SL SF Bosch Purion LED front light for E-bikes with StVZO approval you illuminate everything

The Lupine SL SF Bosch LED front light with StVZO approval is compatible with E-bikes with Purion and Kiox displays. Its daytime light setting provides better visibility when it is bright outside but still cloudy or overcast. The step-adjusted stereo sensor system automatically switches to low beam at twilight. Its design was modelled after car headlights, and is completely glare-free for oncoming road users. High beam function is simultaneously enabled. This model utilises 1300 lumens for the path ahead, giving you not just a stronger low beam, but a completely different luminosity that illuminates areas above the anti-glare boundary between light and dark. You will surely master fast rides and demanding trails with the wired remote, which can be incrementally faded or brightened in seconds. In oncoming bike traffic, the light should be faded to reduce glare for other riders. The button's symbol illuminates green or blue when the high beam is engaged or off. The front light is controlled with either the remote control or your E-bike's control mechanism. An additional power button is located on the underside of the lamp's head. The heart of the front light is formed by 18 Osram Compact CL Automotive LEDs, along with the world's first dual aspheric lens system for bicycle lamps. The lens material, used in aviation and medical technology applications, is extremely weather-resistant. The robust and high-quality aluminium body reliably protects the lamp from shocks, dust and water.

Information regarding the return of batteries and electrical equipment:

Information on the return and disposal of used batteries and electrical equipment can be found here.

Guidelines for replacing E-bike components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked E-bikes/pedelecs with pedal assistance.


front light (white)
Light Source:
18 x Osram Compact CL automotive LEDs
900 lumens (low beam), 1300 lumens (high beam)
Illumination Range:
230 m
Power Source:
E-bike battery

Technical Information:

Illumination Modes:
daytime running light, low beam, high beam
12 V
button on light, button on connected remote

Approved For:

Street Use in Germany:
yes, for bicycles (according to §67 StVZO)
Check Number:


  • Bosch Performance CX E-Bike drive with Purion/Kiox display
  • Bosch Active Line E-Bike drive with Purion/Kiox display
  • Bosch Active Line Plus E-Bike drive with Purion/Kiox display


  • glare-free dipped beam
  • high beam with optimised light pattern
  • wired remote control on handlebar with button for fast switching between dipped and main beam light
  • sensor-controlled daytime running light with automatic switchover to low beam at dusk
  • clamp made of CNC-milled aluminium


black / 31.8 mm:
Handlebar Clamp:
31.8 mm
Manufacturer Number:

black / 35 mm:
Handlebar Clamp:
35 mm
Manufacturer Number:


  • 1 x Lupine SL SF Bosch front light
  • 1 x Lupine clamp
  • 1 x Lupine remote clamp
  • 1 x Lupine spacer
  • 2 x Lupine O-rings
  • 2 x Lupine bolts
  • 1 x Lupine bolts
  • 3 x Lupine hex tools
  • 1 x Lupine Torx keys

  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.89 / 5.00


  • black/31.8 mm, in stock
  • black/35 mm, in stock

Customer Reviews (1)


Customer Reviews (1)


Give us your opinion on this product.

by Anil K. on 31.01.2021
verified purchase
item: black/31.8 mm
2 of 2 customers found this review helpful.

Ich hatte vorher das SL AF7 (akkuversion), denn mein vorheriges Pedelec hatte nicht die Leistung um das Licht zu betreiben.
Naja jetzt hab ich einen Bosch CX Gen4.
Was soll ich sagen, ein Teppich aus Licht.
Den SL X wollte ich nicht, auch wenn er auf dem Papier mehr Leistung bringt und nicht übertrieben teurer ist.
Dafür braucht man aber nochmal einen Schwung mehr Leistung und ist größer.
Kurzum, das perfekte Licht für mich ist der SL SF. Homogenes, starkes, helles Licht.
Klein, fein und einfach zu montieren für Erfahrene.
Sonst für kleines Geld von der Fachwerkstatt.
Zur Not kann auch ein Elektrikerfreund 2 Kabel Löten und gut ist. Jeden Euro Wert, weiter so Lupine!
Übrigens der Service von Lupine ist auch 1A

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