Magicshine SEEMEE R300

71/100
BikeRide Score
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Facts

Light Type
Mounting
Brand
Bike Type
Lumens
300 Lumens
Battery Life
8 to 100 Hours
Power
Weight
2.82 oz
Water Resistance Level
IP Rating
IPX6

Summary of Reviews

We have read all expert and user reviews on the Magicshine SEEMEE R300. In summary, this is what cyclists think.

8 reasons to buy

  • Testers say the SEEMEE R300 feels solidly built.
  • Pairing the light with bike computers is seamless, according to reviewers.
  • Testers praise the eye-catching flash patterns, and owners appreciate the long-distance visibility.
  • Magicshine includes two seatpost mounts for aero and regular posts. A GoPro-style saddle mount is sold separately.
  • The SEEMEE R300 turns off after five minutes of inactivity and reactivates upon detecting vibration.
  • Peloton mode syncs the flash pattern to nearby SEEMEE R300s for group riding.
  • The SEEMEE R300 offers "good" side-on visibility.
  • This light is waterproof.

5 reasons not to buy

  • This light yields more false alerts for approaching vehicles than competing radar taillights. One expert gets 14 false positives in a 6.5-mile test.
  • The SEEMEE R300 regularly fails to detect and alert approaching vehicles. One tester records two false negatives in 6.5 miles.
  • Several reviewers complain that run times are significantly shorter than those stated by Magicshine.
  • Two reviewers criticize the seatpost mounts. One says they're flimsy, and the light vibrates when cycling; another's breaks after little use.
  • This light is heavier than competing radar lights, though the battery is larger.

Bottom line

The Magicshine SEEMEE R300 is a radar taillight. It pairs with bike computers to warn of approaching vehicles and for toggling modes. The device is easy to pair and offers good visibility, but opinions vary over the radar's performance. Some reviewers find vehicle detection accurate, but others report a higher number of false positives than competing bike radars. Two reviewers dislike the Garmin-style mount, and others report inaccurate stated runtimes. While the Magicshine SEEMEE R300's competitive price is appealing, testers feel the technology needs improving.

Expert Reviews

66/100 based on 3 rated expert reviews
90
The Sweet Cyclists

Magicshine SEEMEE R300 Bike Radar Taillight Review

Overall, we found the Magicshine SEEMEE R300 to be a very well-designed taillight with good radar performance.

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60
bucky rides

Compare Magicshine SEEMEE R300 to Garmin Varia 515: Which Is the Better Radar Light?

I cannot recommend purchase of one of these units. It needs development work to make the radar function more real-life usable.

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60
?
This review has been given a score. Read more here
Overbiked Randonneuring

Shameful: Magicshine R300 Radar Taillight Review

The goodwill I’ve had towards Magicshine for [the] high-performance EVO 1700 and the C300 taillight [was] hurt significantly by the poor performance of this R300. So, stay away from this one.

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Three Cycling Radars That Should Be Avoided (For Now)

These devices, on the other hand, make radar seem like an untrustworthy gimmick of sorts, and I can’t put it any other way.

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CYCLE YOUR WAY

Magicshine SEEMEE R300 – Test of the New Radar [German]

It’s really cool to know at all times whether there are cars behind you or not. And the price is also quite reasonable… so, in that respect, it’s actually a [good] investment.

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User Ratings

100/100 based on 4 ratings
  • 5 star
    100%
  • 4 star
    0%
  • 3 star
    0%
  • 2 star
    0%
  • 1 star
    0%

Rankings

Compared to other bike lights
#21 Best Rear Light
Bottom 10%
#22 Best Seatpost Light
Bottom 10%
#12 Best Magicshine Light
Bottom 30%
#55 Best of All Lights
Bottom 10%

Bike Light Comparison

Magicshine SEEMEE R300 in comparison to averages