Moon Sirius intelligent rear light

Moon Sirius intelligent rear light

£37.49  £49.99
Dispatched between 7th Jun and 8th Jun, if ordered before 2:00pm today.

Black and Red



Part Number:




The Moon Sirius intelligent rear light is constructed from a CNC Aluminium heat sink casing equipped with break & light-sensitive technology, meaning it works like a car light. The case features a built-in reflector making it highlight you even when it's not turned on. Day flash Mode, light memory mode and side visibility make it easy to stay safe. USB-C rechargeable and Quick release universal bracket add perfect elements of convenience.


  • Intelligent operation: Motion-sensitive & Light sensitive
  • Reflection (built-in reflector)
  • Break Sensor
  • Auto safe mode (Around 1hr)
  • Day flash mode
  • Light mode memory
  • CNC Aluminum heat sink casing
  • USB-C rechargeable
  • Quick release universal bracket
  • 2 O-rings for mounting:
  • RS-G(fits 20-35mm diameters)
  • RS-H(fits 35-52mm diameters)
  • Low battery, charging & fully charged indicator
  • Automatic fully charged cut-off system
  • Side visibility
  • Water resistant (IPX 7)
  • STANDBY TIME: 500hrs
  • Variable lumen system
  • FL-1 tested lumen
  • FL-1 tested runtime
Mode: Output, Runtime

  • DAY FLASH: 150lm, 13hr
  • MODE 1:30lm, 2.4hr
  • MODE 2: 60lm, 1.2hr
  • FLASH 1: 30lm, 14hr
  • FLASH 2: 60, 11hr
This light is great for commuting if you want something that's for long rides Consider the Pro version

Bike Lights - How Many Lumen Do You Need?

Bike lights are rated in Lumens. A Lumen is the measurement of the total visible light emitted and is commonly used for all kinds of bulbs.

One thing worth noting is that most lights advertise their headline rate. Packaging may say 1000 lumens. Reading the small print they might only do that for an hour. That light may run 500 or 600 lumens for 2 or 3 hours. So it's worth buying a light with more lumens than you need to get decent running times.

There is no fixed agreement on how many Lumens you need for a bike light as it depends on the type of cycling you are doing. As a rough guide we say that:

  • Daytime running lights = 100+ Lumens
  • Urban commuting lights = 50 to 200 Lumens
  • Rural riding lights = 400 to 600 Lumens
  • Trail riding lights = 600+ Lumens

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Colours Black and Red
Sizes N/A
Brand Moon
Model Year 2020
Barcodes 4897029984833
SKUs / Part Numbers LAAMY2004

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