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Bicycle Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
  • Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light
Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light

Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light

  • 10 - 39 Pieces
    $5.40
  • 40 - 199 Pieces
    $4.95
  • >= 200 Pieces
    $4.51

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
View product details

Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Visibility Safety: Equipped with a COB LED array for intense brightness, featuring multiple modes (flashing, steady) and an auto-sensor to activate in low-light conditions, ensuring optimal visibility during night riding.
  • Durable & Adaptable Design: Constructed from ABS and aluminum for weather resistance, with an adjustable, flexible mount that secures to various bike frames, enabling secure installation across different scenarios.
  • Convenience & Sustainability: USB rechargeable design for easy charging and energy efficiency, reducing reliance on disposable batteries.

Key features

  • 1. Corrosion-Resistant Aluminum & Durable ABS Construction

    • With a corrosion-resistant aluminum body and durable ABS plastic, ensure long-lasting durability even in harsh outdoor conditions*.

  • 2. Adjustable Mount & Multi-Mode Brightness Control

    • With an adjustable silicone mount and multi-mode brightness control (flashing, steady, etc.), easily adapt to different bike frames and riding scenarios*.

  • 3. High-Intensity COB LED Technology

    • With high-intensity COB LED technology, achieve brighter, more consistent light output compared to standard LED models, enhancing nighttime visibility*.

  • 4. Automatic Light-Sensing Activation

    • With an automatic light-activated sensor, ensure immediate visibility in low-light conditions without manual activation, surpassing models requiring manual setup*.

  • 5. CE Certified Safety & Quality

    • With CE certification, meet rigorous safety and quality standards, ensuring reliability beyond non-certified alternatives*.

Product details

Machfally BK820 Intelligent Brake Night Riding a Lamp COB LED USB Rechargeable Bicycle Rear Bike Light

The Machfally BK820 Intelligent Brake Night Riding COB LED USB Rechargeable Bicycle Rear Light is designed to enhance safety and visibility during nighttime or low-light conditions. Built with durable ABS and aluminum materials, it combines sleek aesthetics with advanced features like a COB LED array, auto-activation sensor, and adjustable silicone mount for universal compatibility.

Technical specifications

FeatureSpecificationBenefit
MaterialABS + AluminumDurable, lightweight, weather-resistant
Light SourceCOB LED Array (High-lumen output)270° visibility for road safety
ChargingUSB-C Rechargeable2-hour fast charge, eco-friendly
Mounting SystemAdjustable Silicone MountSecures to 22-35mm seatposts
Auto-On SensorLight-ActivatedInstantly activates in low-light conditions
CertificationCE CertifiedMeets EU safety standards

Customization guide

Adjustable silicone mount allows customization of angle and tilt to optimize visibility for different riding postures. Brightness modes (steady/flash) can be tailored to local traffic regulations or rider preference.

Get inspired

Enhance your night rides with the Machfally BK820. Its COB LED technology ensures you’re visible from all angles, while the auto-sensor guarantees instant activation in fading light. The sleek, weather-resistant design adapts to any bike, making safety effortless.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Brightness (Lumens)100150 (+50%)200 (+100%)*
Battery Life10h15h (+50%)20h (+100%)*
Mounting FlexibilityStandard FitAdjustable AnglesUniversal Compatibility
Water ResistanceIPX4IPX6IPX7
  • vs. industry average 85 lumens and 8h battery.

Supplier's note

  1. Technical Breakthroughs:

    • COB LED Array: Delivers 20% brighter illumination than traditional LED clusters, improving visibility in heavy rain or fog.
    • IPX7 Waterproofing: The Pro model withstands immersion in 1m water for 30 minutes, ideal for rainy commutes.
    • Universal Mount: The Pro’s adjustable silicone mount fits 90% of bike frames, eliminating the need for aftermarket adapters.

  2. Version Selection Guide:

    • Base Model: Perfect for casual riders prioritizing affordability. With 10h runtime, it suits short evening rides.
    • Advanced Model: Commuters and urban cyclists benefit from 15h battery life and adjustable angles for optimal positioning.
    • Pro Model: Professionals and long-distance riders gain triple the water resistance (IPX7) and 200 lumens—ideal for harsh weather or mountain trails.

With the BK820 Pro’s IPX7 rating, you can ride confidently through downpours. Pair its 200-lumen output with the universal mount to ensure visibility and stability even on rugged terrain.

Frequently asked questions

  • Which bike tail light is best for night cycling safety (Machfally BK820 Intelligent Brake Night Riding)?

  • How do I clean the Machfally BK820’s LED array and maintain its brightness?

  • ABS vs Aluminum: Which material makes the BK820 more durable for bike lights?

  • Can the BK820’s mount be adjusted for different bike seatpost sizes?

  • Is the Machfally BK820 CE-certified for road safety compliance?

  • How long does the BK820’s USB rechargeable battery last in flashing vs. steady mode?

  • Does the BK820 have multiple brightness modes for varying riding conditions?

  • Is the BK820’s design compact enough for road bikes without adding bulk?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Industry Standard Tail LightGeneral night riding, basic commutingBrightness: 50 lm (IEC 61960)
Battery Life: 20h
Weight: 200g
Water Resistance: IPX3 (IEC 60529)		Affordable, reliable for casual useLimited visibility, short battery life
Machfally BK820 BaseUrban commuting, short tripsBrightness: 100 lm (▲)
Battery Life: 30h (▲)
Weight: 150g (▲)
Water Resistance: IPX4 (▲)
COB LED		Doubled brightness vs Industry
Lightweight, IPX4 water resistance		Moderate price increase vs Industry
Machfally BK820 AdvancedHighway riding, extreme conditionsBrightness: 150 lm (▲▲)
Battery Life: 50h (▲▲)
Weight: 120g (▲▲)
Water Resistance: IPX6 (▲▲)
Quick-release mount		Best-in-class visibility (▲▲)
IPX6 waterproofing (▲▲)
50h runtime (▲▲)		Higher cost, bulkier design for advanced features
Basic LED Tail LightCasual riding, occasional useBrightness: 30 lm
Battery Life: 15h
Weight: 250g
Fixed mount		Inexpensive, simple designPoor visibility, no water resistance
High-Visibility Tail LightNight cycling in urban areasBrightness: 120 lm (▲)
Battery Life: 25h
Weight: 180g
IPX5 water resistance		Superior visibility for city ridingHeavier than Machfally Base model
Wireless Magnetic Tail LightFrequent removal (e.g., e-bikes)Brightness: 80 lm
Battery Life: 22h
Weight: 190g
Magnetic mount		Quick attachment/detachmentLower brightness vs Machfally Advanced

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