SKU LW-F900B · Front Lights · External battery bicycle front light · OEM / Private label available
LW-F900B 900-Lumen External Battery Bicycle Front Light
The LW-F900B is a 900-lumen bicycle front light with a separate 34Wh external battery pack, designed for riders who prefer a compact light head and extended cable-powered illumination. With handlebar, helmet and fork mounting accessories, it offers flexible installation for different cycling setups.
- 900 lumens maximum output
- Single LUMINUS SST-25 LED
- Up to 18 hours at 220 lumens
- External 34Wh battery pack with digital power display
- USB-A power bank output
- Handlebar, helmet and fork mounting options
- IP65-rated protection
Emily Qin · Sales Director · emily@ridingoutdoor.com · WhatsApp / WeChat +86 134 1076 4036
A compact light head with an external power source
A compact light head with an external power source
The LW-F900B separates the bicycle light head from its battery pack. The light can be mounted on the handlebar, helmet or fork using the supplied mounting accessories, while the external battery pack can be secured separately to the bicycle frame.
The system uses a 12 cm light-head cable together with a 120 cm extension cable, allowing flexible positioning of the light and power pack.
The included LW-BAT7448 battery pack also provides a USB-A output for compatible USB-powered devices, in addition to supplying the bicycle light through its DC connection.
Key features
900-Lumen LUMINUS LED
Powered by one LUMINUS SST-25 LED, with three steady brightness levels for different riding conditions.
Three Steady Modes
Choose between 220, 450 and 900 lumens, with documented runtimes of 18, 9 and 4.5 hours respectively.
External 34Wh Battery Pack
The separate LW-BAT7448 power pack allows the light head to remain compact while the battery pack is secured elsewhere on the bicycle.
Multiple Mounting Positions
Supplied mounting accessories support handlebar, helmet and fork installation.
USB-A Power Bank Function
The battery pack provides a 5 V / 1 A USB-A output for compatible devices.
IP65 Protection
The light system has a supplier-stated IP65 protection rating.
Convenient Light Controls
Single-click operation, double-click flashing access, long-press power-off and mode memory while the battery remains connected.
Technical specifications
| Model | LW-F900B |
|---|---|
| Product Type | External battery bicycle front light |
| Maximum Output | 900 lm |
| LED | 1 × LUMINUS SST-25 |
| Low Mode | 220 lm / 18 h |
| Medium Mode | 450 lm / 9 h |
| High Mode | 900 lm / 4.5 h |
| Additional Modes | Slow flash, SOS |
| Battery Pack | LW-BAT7448 |
| Battery Energy | 34 Wh |
| Battery Capacity Reference | 10,000 mAh at 3.7 V / 5,000 mAh at 7.4 V |
| Battery Design | External battery pack with non-user-removable internal cells |
| DC Output | 7.4 V / max. 4 A |
| DC Connector | 5.5 × 2.1 mm |
| USB-A Output | 5 V / max. 1 A |
| Charging Input | USB-C, 5 V |
| Cable | 12 cm light cable + 120 cm extension |
| Protection Rating | IP65 |
| Materials | Aluminium and plastic |
| Colour | Matte Black |
| Battery Level Indication | Digital display on battery pack |
| StVZO Certification | No |
| Packaging | Hard gift box |
Three brightness levels for different riding needs
Three brightness levels for different riding needs
The LW-F900B provides three steady modes: 220 lumens for up to 18 hours, 450 lumens for up to 9 hours and 900 lumens for up to 4.5 hours.
Slow flash and SOS modes are also available.
| Mode | Output | Runtime |
|---|---|---|
| Low | 220 lm | 18 h |
| Medium | 450 lm | 9 h |
| High | 900 lm | 4.5 h |
Additional modes: slow flash and SOS.
Flexible mounting for different cycling setups
Flexible mounting for different cycling setups
The LW-F900B supports handlebar, helmet and fork mounting using the supplied accessories.
The separate external battery pack can be secured to the bicycle frame, while the 120 cm extension cable provides additional flexibility in positioning.
34Wh external battery pack with USB-A output
34Wh external battery pack with USB-A output
The LW-BAT7448 battery pack supplies power to the bicycle light through a DC connection.
It also includes a USB-A 5 V / 1 A output for compatible USB-powered devices and a digital battery power display.
The battery pack is a separate external unit. Its internal battery cells are not designed to be removed or replaced by the user.
What is in the box
Fork holder, silicone-strap handlebar bracket, helmet mount, LW-BAT7448 external battery pack, anti-slip battery strap and USB-C charging cable.
The lighting system includes a 12 cm light-head cable and a 120 cm extension cable.
Flexible Lighting for Different Cycling Setups
Handlebar-Mounted Bicycle Lighting
Install the light head on the handlebar while securing the external battery pack separately to the bicycle frame.
Helmet-Mounted Lighting
Use the supplied helmet mounting accessory to position the light on a compatible cycling helmet, with the external battery pack carried separately and connected by cable.
Fork-Mounted Lighting
The supplied fork holder provides an additional installation option for suitable bicycle configurations.
Cycling Accessories and OEM Programmes
The external-battery format offers bicycle brands and distributors another lighting option alongside conventional self-contained rechargeable front lights.
LW-F900B vs LW-F1600B: Which External Battery Light Fits Your Range?
Both models share a similar external-battery design and mounting concept. The key differences are maximum brightness, LED configuration and documented runtime.
| Feature | LW-F900B | LW-F1600B |
|---|---|---|
| Maximum Brightness | 900 lm | 1600 lm |
| LED Configuration | 1 × SST-25 | 2 × SST-20 |
| Low Mode | 220 lm / 18 h | 400 lm / 14 h |
| Medium Mode | 450 lm / 9 h | 800 lm / 7 h |
| High Mode | 900 lm / 4.5 h | 1600 lm / 3.5 h |
| External Battery | 34 Wh | 34 Wh |
| IP Rating | IP65 | IP65 |
| USB-A Power Bank | Yes | Yes |
| StVZO Certified | No | No |
Choose the LW-F900B when lower power consumption and longer documented runtime at its lower brightness settings are priorities.
Choose the LW-F1600B when a higher maximum light output is required.
Both models use a separate external battery pack and are available for OEM and private-label project discussions.
View LW-F1600B 1600-Lumen External Battery Bicycle Front Light
OEM & Private Label Bicycle Lighting Solutions
Ridingoutdoor supports bicycle brands, distributors and importers with bicycle lighting sourcing, product selection, OEM branding, packaging coordination, quality inspection and export services.
The LW-F900B and LW-F1600B offer two brightness options within a similar external-battery lighting format.
We can discuss logo branding, packaging requirements, sample evaluation and bulk supply based on the confirmed product configuration.
| OEM / Private Label | Available for project discussion |
|---|---|
| MOQ | Subject to confirmed order configuration |
| Sample Evaluation | Available on request |
| Packaging | Hard gift box; custom packaging subject to confirmation |
| Lead Time | Confirmed with each order |
| Pricing | Request a Quote |
Frequently asked questions
What is an external battery bicycle light?
An external battery bicycle light has a separate light head and battery pack connected by cable. This allows the light head and power source to be mounted in different positions.
Is the battery removable?
The external battery pack can be detached from its bicycle mounting arrangement. However, the battery cells inside the pack are not designed to be removed or replaced by the user.
What is the battery capacity?
Both models are documented with the LW-BAT7448 34Wh external battery pack, specified as 10,000 mAh at 3.7 V or 5,000 mAh at 7.4 V.
Can the battery pack charge other devices?
Yes. The battery pack includes a USB-A 5 V / 1 A output for compatible USB-powered devices.
Can the light be mounted on a helmet?
Yes. A helmet mounting accessory is included. The battery pack remains separate and is connected by cable.
What is the cable length?
The system includes a 12 cm light-head cable and a 120 cm extension cable.
Are the lights waterproof?
Both models have a supplier-stated IP65 protection rating. This should not be interpreted as approval for underwater use.
What is the difference between LW-F900B and LW-F1600B?
The LW-F900B delivers up to 900 lumens using one LUMINUS SST-25 LED. The LW-F1600B delivers up to 1600 lumens using two LUMINUS SST-20 LEDs. Their documented brightness modes and runtimes differ.
Are the LW-F900B and LW-F1600B StVZO certified?
No. Neither the LW-F900B nor the LW-F1600B is StVZO certified. Buyers should check the applicable bicycle lighting regulations in their target markets before offering these models for public-road use.
Can these lights be supplied for OEM or private-label projects?
Ridingoutdoor can coordinate branding, packaging and sourcing requirements for bicycle brands and distributors. Final customisation options and quantities are confirmed per project.
Related Bicycle Front Lights
Explore more bicycle lighting solutions from Ridingoutdoor, including external-battery front lights and compact rechargeable bicycle headlights.
Request a quote for LW-F900B 900-Lumen External Battery Bicycle Front Light
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Emily Qin · Sales Director
emily@ridingoutdoor.com · WhatsApp / WeChat +86 134 1076 4036 · LinkedIn