Brompton G Line Front Battery Light
This is a rechargeable batter front light for your G Line, the key features are as follows:
- Mounts to your G line front fork
- Bright with up to a 500 Lumen output and daytime flash
- IPX7 water resistant rated
- It has a maximum run time of 20 hours and is rechargeable with a USB stick
- Machined aluminium body
- Battery capacity - 650 mAh
Note this light and bracket are not compatible with A, C, P or T line Brompton bicycles
Do not submerge the light into water, if you do dry it out thoroughly
Brompton G Line front light package contents: |
- Brompton Lezyne 500XL light
- G line fork mounting bracket with quick release for light
- Fitting instructions
Light compatibility: |
A Line | Not compatible |
C Line | Not Compatible |
P Line | Not Compatible |
T Line | Not Compatible |
G Line | Compatible - yes it's just for the G Line (not Electric though)! |
Brompton G Line front light fitting instructions: |
- To fit the bracket to your G Line:
- Remove the handle bar mounting bracket from the light - using a 4mm Allen key / hex wrench (not 9Nm as it says in the instruction data sheet)
- Fit the O-Ring to the plastic mount and fit the mount to the underside of the light
- To fit the bracket to the fork: remove the pedal holder and bolt by unscrewing the pedal holder with a 4mm Hex key
- Fit the washer to the bolt, then insert the light bracket into the front fork, tighten the to 3Nm
- To fit the light to the bracket - push until you hear a click
- To remove push the lever on the light up from the bottom
Brompton G Line Lezyne front light operation: |
- To operate the light:
- Press the on / off button for 2 seconds
- To cycle between lighting modes press the on / off button
G Line front light modes and run times: |
Mode Name | Brightness (lumens) | Run Time (hours) |
Blaste | 500 | 1 |
Nduroe | 200 | 2 |
Economy | 100 | 4 |
Femto | 15 | 20 |
Flash 1 | 50 | 13.5 |
Flash 2 | 50 | 13.5 |
Day Flash | 500 / off | 5.75 |
Pulse | 50 | 15 |
Note - times are approximate (as provided by the Lezyne) - not tested by us!
Battery indicator: |
Colour | Charge Level |
Green | 100% |
Yellow / Green | 50% |
Red | 10% |
Flashing Red | 5% |
Charging your Brompton G Line front light: |
- Fully charge the light before first use
- To charge, turn off the light
- Remove USB protective cover
- Insert USB charging cable (not provided) / USB charger
- While charging the charge LED light will flash green
- The light takes 3 - 4 hours to charge and the light will glow green when fully charged
- Once charged remove from the USB charger and replace the protective cover
More information about the G Line Lezyne light: |
We made this short video about this light - how to install / charge and lighting modes
Brompton Q Part code: Q103714
Made in: Taiwan

















