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


Busch + Muller

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

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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)


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

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

b + m part number: 326US

Made in Germany
Approved for German road traffic regulations

Note: Packaging could change

Installation instructions

Simply mount to a 50mm (as used on Brompton) 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

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Data sheet

Comm Code85121000
Supplier Reference:326US
PowerUSB Rechargeable