Smart Lunar R2 rear light review
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.