






MJ-900S Lightweight Mountain Bike Light
MJ-900S Lightweight Mountain Bike Light
$69.99 USD
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- Independent Daytime Running Light design and side lighting, enhanced passive visibility.
- Cutoff grating to prevent blinding, for oncoming cyclists and motorists.
- Large contact area power switch, easy to press with gloves. Remembers the light mode last used.
- Internal thermal management and highly efficient heat dissipation fins, vital to maintaining max output.
- High capacity USB battery MJ-6112, providing long runtime also reverse charging as USB power bank.
- Easy to read battery capacity indicator on light switch and battery pack.
- IPX6 water resistant, ready for any weather you can handle.
- Universal Garmin mounting mechanism, super convenient to install / take off.
- Compatible with bar sizes 28mm, 31.8mm and 35mm with support for additional sizes and bar shapes.
CONSTANT | DRL | LOW | MID | HIGH |
---|---|---|---|---|
LUMENS | 15 | 500 | 1000 | 1500 |
h:min | 25:00 | 05:00 | 02:12 | 01:30 |
FLASH | FLASH 1 | FLASH 2 | / | / |
LUMENS | 0-1000 | 0-500 | / | / |
h:min | 05:00 | 09:30 | / | / |
- MJ 900S x1
- MJ-6112 battery pack x1
- Handlebar mount x1
- Silicon strap x4
- Micro USB cable x1
- 3mm hex key x1
- User manual x1
MJ-900S is a upgrade and improved version of the original classic MJ-900 which has sold millions of units around the world. It continues the MJ-900’s compact, lightweight, and high-output design. Cover lens, LED light source, installation and battery capacity have all made huge forward strides.

PERFECT CHOICE AS HELMET LIGHT
MJ-900S can be used as a bike light and it is also an excellent choice as your helmet light. Having extra light sources during your night riding can make your riding safer.

SAFER
Newly added safety features including vertical light diffuser to reduce exposure on oncoming traffic, side lighting to enhance passive visibility, providing well rounded protection under all weather and road conditions.

EFFICIENT THERMAL MANAGEMENT
Large area heat sink and internal thermal management system have been upgraded over previous generation products. Maximum performance can be sustained over time while maintaining MJ-900S at optimal operating temperature.

SINGLE BUTTON CONTROL
Large control button for brightness, beam switching via single and double clicks. Easy to press with gloves and remembers your last light mode used.

MULTI-USB BATTERY PACK
7.2V 2,600mAh capacity for sustained runtime. Rechargeable via Micro-USB, can be used as power bank. Easy to read power indicator.

DIRECT BATTERY INDICATOR
Easy-to-read battery indicators available both on lamp head and battery pack.
SPECIFICATIONS
MAX OUTPUT
1500 LUMENS
RUNTIME
1.5-25 HOURS
WATERPROOF
IPX6
MOUNTING SYSTEM
Garmin style quarter turn mount
SUITABLE HANDLEBAR
28.6mm, 31.8mm, 35mm, aero bar
WARRANTY
2 years
BATTERY CAPACITY
7.2V,2600mAh
CHARGER
Micro USB
CHARGING TIME
2.5 hrs (5V,2A)
MATERIAL
Aluminum & Plastic
DIMENSION
47 x 34 x 36mm
WEIGHT
245 g

- MJ 900S x1
- MJ-6112 battery pack x1
- Handlebar mount x1
- Silicon strap x4
- Micro USB cable x1
- 3mm hex key x1
- User manual x1
Product Comparison
MODEL |
![]() MJ-906S |
![]() MJ-902S |
![]() MJ-900S |
![]() RN 3000 |
![]() RAY 2600B |
![]() RAY 1600B |
---|---|---|---|---|---|---|
Max Lumens | 4500 LM | 3000 LM | 1500 LM | 3000 LM | 2600 LM | 1600 LM |
Beam Angle | 32° | 32° | 26° | 25°/32° | ||
Max Throw | 236 m | 190 m | 160 m | 263 m | 183 m | 140 m |
Runtime | 4-35.5 hrs | 1.5-42 hrs | 1.5-25 hrs | 2.2-62 hrs | 2.2-15 hrs | 2.2-15 hrs |
App Customization | ✖️ | ✖️ | ✖️ | ✖️ | ⚫️ | ⚫️ |
DRL | ⚫️ | ⚫️ | ⚫️ | ✖️ | ✖️ | ✖️ |
Anti-Glare | ⚫️ | ⚫️ | ⚫️ | ⚫️ | ✖️ | ✖️ |
Brightness Sensor | ✖️ | ✖️ | ✖️ | ✖️ | ⚫️ | ⚫️ |
Vibration Sensor | ✖️ | ✖️ | ✖️ | ✖️ | ⚫️ | ⚫️ |
Remote Option | ✖️ | ✖️ | ✖️ | ✖️ | ⚫️ | ⚫️ |
E-bike Compatible | ⚫️ | ⚫️ | ⚫️ | ✖️ | ✖️ | ✖️ |
Beam Intensity | 14000 CD | 9100 CD | 6500 CD | 17412 CD | 8400 CD | 5000 CD |
Waterproof Rate | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 |
Battery Capacity | 7.2V, 10000mAh | 7.2V, 7000mAh | 7.2V, 2600mAh | 3.6V, 10000mAh | 3.6V, 6700mAh | 3.6V, 5200mAh |
Charger | USB-C | Micro USB | Micro USB | USB-C | USB-C | USB-C |
Charging Time | 9.5 hrs (5V/2A) | 6.5 hrs (5V/2A) | 2.5 hrs (5V/2A) | 4 hrs (5V/2A) | 3.5 hrs (5V/2A) | 3.5 hrs (5V/2A) |
Weight | 503 g | 388 g | 245 g | 279 g | 190 g | 190 g |
Dimension | 45 * 43 * 33 mm | 45 * 43 * 33 mm | 47 * 34 * 36 mm | 107 * 48 * 32 mm | 96 * 41 * 27mm | 96 * 41 * 27mm |
Material | Aluminum&Plastic | Aluminum&Plastic | Aluminum&Plastic | Aluminum | Aluminum | Aluminum |
Mounting System | Garmin style quarter turn mount | Garmin style quarter turn mount | Garmin style quarter turn mount | Garmin style quarter turn mount | Garmin style quarter turn mount | Garmin style quarter turn mount |