sdwen QD-250LM Light-Sensing Front Headlight with 5 Strong LEDs and Red & Blue Lights: Light-sensing smart sensor technology
This smart headlight is for the everyday cyclist who rides in changing light, like commuting home at dusk or navigating city streets after dark. While many bike lights focus on brightness, this one offers intelligent convenience with its light-sensing mode, automatically adjusting to your environment so you stay visible without fumbling for switches.
The auto-sensor kicks in before you even notice the shadows, switching from low to high beam as daylight fades. You get 250 lumens and a 150-meter range, powered by a USB-rechargeable battery that lasts up to 6.5 hours. With an IPX6 waterproof rating and aluminum alloy housing, it withstands rain and rough rides. The easy clamp mount secures in seconds, making it a reliable companion for road or mountain biking.
Features
- Four light modes including flashing
- USB rechargeable battery with 3-6.5 hour life
- IPX6 waterproof rating
- Aluminum alloy housing with lightweight design
- Easy-fitting clamp mount
- 250 lumens with 492 foot range
- Compact and durable construction
- Light-sensing smart sensor technology
General specs
- Brand: sdwen
- Model: QD-250LM
- Seller: Joom
- ID: 6923b166164a7d01e303cfdd
- Light Source: LED
- Number of Modes: 5
- Bike Type Compatibility: Mountain, Road
- First listed by seller: 12/10/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
sdwen QD-250LM Black Light-sensing smart sensor technology
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XANES SFL 01 600LM headlight brightness
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Solar Rechargeable Bike Headlight with Horn 1600 lumens brightness
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Lumintop B01 850LM brightness
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LAOTIE BU10 1600Lm brightness
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Bike Lights USB Rechargeable
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| Brand | sdwen | XANES | BIKIGHT | Lumintop | LAOTIE | |
| Model | QD-250LM | SFL 01 | B01 | BU10 | ||
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| Price | $22.39 | $15.16 | $15.16 | $46.80 | $16.16 | $14.80 |
| Seller | Joom | Banggood | Banggood | Gshopper | Banggood | Gshopper |
| Update | December 12, 2025 | December 9, 2025 | December 9, 2025 | July 25, 2024 | December 9, 2025 | July 25, 2024 |
| Brightness | 850LM | 1600Lm | 500LM | |||
