Smart Lunar R2 rear light review

Bright, versatile rear LED

Our rating 
4.0 out of 5 star rating 4.0
GBP £25.49 RRP | USD $40.45
Smart Lunar R2 rear light

Our review

Great visibility and lots of mounting options
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Two half-watt LEDs make this five-mode rear flasher visible from hundreds of metres away. As well as constant, single LED and flashing modes there’s an attention-getting disco flash pattern and a pulsing mode – good for constant visibility on unlit roads.


The body has a clip to mount on a jacket or saddle bag, and 31mm and 18mm clamps are included so it fits almost anywhere on the bike including the seatstays. We found the stiff switch slightly awkward with winter gloves, though.

Product Specifications


Name Lunar R2 light (11)
Brand Smart

Features • Flashing, low light pulse and constant mode keeps commuters happy • 2x0.5 Watt high intensity LED's • Visibility: up to 1 mile • Run time: up to 50 hours flashing, 25 hours on steady mode • Batteries included: (2xAAA) • Tough construction withstands extreme weather conditions