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2C permanent - rear light by busch + muller - on Brompton folding bike View larger
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Rear light / reflector - 2C Permanent USB rechargeable by busch + müller

326US

Busch + Muller

Bush + Müller 2C Permanent USB rechargeable rear light - attaches to rear carrier / Brompton bracket

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We have 53 in stock

£33.00

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Bush + Müller 2C permanent - rear light / reflector - USB rechargeable

The snappily named 2C permanent is quite an unusual light (to us) - it is a bracket mounted rear light with built in reflector, which is powered by USB instead of replaceable batteries

It's our go-to rear Brompton light and we like the fact it's rechargeable rather than using those old fashioned batteries!

We think it's called permanent as it mounts to the bike (rack or Brompton bracket) using two screws - -then the light itself snaps out of the mounting for recharging

Built in Z reflector for safety when the light is off / has no power / to comply with the highway code

It has a bracket which fits permanently to the rack (or Brompton reflector bracket) and can connect using 50mm or 80mm widths (Brompton uses 50mm)

Patented lens system creates two wide light areas from two high output LEDs

Power lasts for approx 15 hours at full power - as the power (from the lithium battery) starts to reduce, the light gradually dims

There is a battery power indicator on the light - when the light shows yellow, please charge

The battery charge indicator also shows the charging state - yellow means it is charging, off means it is fully charged

The light is removed from the bracket to charge (this allows access to the USB socket located on the back of the light)

Modes:

  • On (steady)
  • Off 
  • It does have a built in reflector too

What’s in the pack?

The pack contains:

  • Bracket to connect to rack - with 50/80mm option (easy change)
  • Rear reflector / light which easily clips into bracket
  • Nuts and washers (for securing to brackets/rack)
  • USB charging cable
  • Fitting instructions

Made in Germany
Approved for German road traffic regulations

Note: Packaging could change

Installation instructions

Simply mount to a 50mm (as used on Brompton folding bikes) or 80mm bracket using the nuts and washers provided

We made this short video on mounting the 2C permanent light to a Brompton folding bike

Comparison to the Brompton Spanninga Solo battery powered light

b + m part number: 326US

Reviews

Grade 
21/03/2025

Bad design

Good bright light and easy to charge and switch on and off. However doesn't hold onto the bracket and fell off and lost.

    Grade 
    20/10/2023

    Bright and long-lasting battery life

    The light is bright enough to been seen by motorists behind. The built in reflector is a useful addition.

    On the version I have, the usb charging port is covered when fitted to the mount.

    Relatively simple to fit but you will have to remove the rear brake.

    • 1 out of 1 people found this review useful.
    Grade 
    27/06/2022

    Great light but careful going down potholes

    I had this light for some time and found it to hold a good charge and illuminate very well. Unfortunately, after going down one of our UK’s poorly maintained roads and going into a pothole it detached and before I could retrieve it a vehicle run it over! Gutted! Try your best to avoid the ever present canyons on our UK roads, it’s a minefield out there!!

    • 1 out of 1 people found this review useful.
    Grade 
    19/03/2020

    Good light but has a fault

    This is a really nice usb chargeable rear light that fits Bromptons and other pannier racks. Mounted on a Brompton it just clears the ground when the bike is in the folded position. The light is bright and the reflector is large. There is however a major design fault - the micro usb port has no cover at all and you can see into the internal part of the light through it. All other lights, Garmins etc have a rubber or plastic cover over the usb port so I'm guessing it will not like rain or dirt in there. I cant believe this was overlooked during the design of the light! I have put black PvC insulating tape over it which seems to work but makes it a tighter fit into the mounting bracket.

    • 6 out of 6 people found this review useful.
    Grade 
    12/10/2019

    Brilliant USB rechargeable light

    A brilliant light that you fit in place of the rear reflector (it has an inbuilt reflector) above the rear brakes or on the rack (if fitted). Nice and bright even in daylight and dead easy to charge as the light unit simply pops out of the mounting - but no danger of it doing that when riding as it is very firmly held in place. Obviously time between charges is entirely dependent upon use but I would say the stated 15 your run time is accurate.

    • 3 out of 3 people found this review useful.

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    Rear light / reflector - 2C Permanent USB rechargeable by busch + müller

    Rear light / reflector - 2C Permanent USB rechargeable by busch + müller

    Bush + Müller 2C Permanent USB rechargeable rear light - attaches to rear carrier / Brompton bracket

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    Data sheet

    OriginGermany
    Comm Code85121000
    Supplier Reference:326US
    PowerUSB Rechargeable