The COOSPO TR70 Smart Radar Tail Light is praised as a cost-effective alternative to Garmin Varia, offering solid battery life, brightness, and smart features, but with occasional false positives and a non-Garmin mount.
Pros
- Long battery life (up to ~19.5h real-world, claimed 30h) with auto sleep feature
- USB-C fast charging (~2h)
- Bright light with good side visibility (comparable to Garmin Varia RTL515)
- Smart brake light and increased flashing when vehicles approach
Cons
- Occasional false positives (up to ~3 per hour in testing; also on trails and random sections)
- Radar icon delay and drops detection when vehicle matches speed
- Signal reflections from opposite traffic or traffic signs can cause false alerts
- Maximum detection speed of 128 km/h may miss faster vehicles
Key Facts
- Detection range up to 140m, tracking up to 7 vehicles simultaneously; detects speeds from 6-128 km/h
- Weight 64-68g with IP67/IPX7 waterproofing
- USB-C charging (2h full charge); real-world battery life ~19.5h vs claimed 30h
Reviews & Ratings
The reviewer describes the COOSPO TR70 radar tail light as a budget-friendly unit that enhances safety by alerting cyclists to approaching cars from behind. It pairs with the CS600 cycling computer to display radar information on the screen. The light has multiple flashing modes, is bright, and uses a Garmin mount for easy attachment. The reviewer notes that once used, it becomes indispensable.
AI Summary
Pros
- Adds extra safety by alerting to cars from behind
- Multiple flashing modes (5-6)
- Bright light
more pros in the video
Cons
- Occasional false positives on trails or random sections
- Minor delay in the radar icon disappearing after a car passes
Key Points
- Has approximately 5-6 flashing modes
- Uses Garmin mount
- Compatible with Coospo Ride app for pattern settings
more key points in the video
The reviewer states that the COOSPO TR70 Smart Radar Tail Light works as well as the Garmin Varia radar, despite negative reviews of earlier versions. They emphasize that after firmware updates, it provides accurate vehicle detection without false positives/negatives, has excellent battery life, multiple lighting modes, smart safety features, and is significantly cheaper than comparable units.
AI Summary
Pros
- Works as accurately as Garmin Varia radar after firmware updates
- No false positives or negatives experienced during testing
- Excellent battery life (up to 30 hours with radar on)
more pros in the video
Cons
- Can be 'chirpy' with multiple beeps (beeps when vehicle detected and again when about to overtake)
- Smart features like brake light and increased flashing may irritate some users
- Works best on straight roads (limited by line-of-sight on twisty roads)
more cons in the video
Key Points
- Model: COOSPO TR70 Smart Radar Tail Light
- Price: €77 (with possible 10% discount)
- Detection range: ~140 meters
more key points in the video
cyclistshub.com
The reviewer tested the Coospo TR70 Smart Radar Tail Light and found it to be a cheap Chinese radar with good battery life and brightness, but with significant accuracy issues including about 3 false positives per hour. They note it doesn't match the reliability of established brands like Garmin Varia.
AI Summary
Pros
- Excellent battery life (lasted about 19.5 hours in day flash mode)
- High brightness (comparable or slightly higher than Garmin Varia RTL515)
- Good side visibility
more pros in the blog post
Cons
- Gives about 3 false positives per hour of riding
- Signal sometimes reflects from cars driving opposite direction or traffic signs
- Accuracy lags behind established Varia radars
more cons in the blog post
Key Points
- Dimensions: 96×39×23 mm
- Weight: 64g
- Claimed battery life: up to 30 hours (day flash)
more key points in the blog post
The COOSPO TR70 Smart Radar Tail Light is generally well-received by users, offering good battery life and USB-C charging. It is visually similar to the Garmin Varia but uses a 90-degree rotated mount. Users appreciate the safety loop and compatibility with Garmin devices. However, there are concerns about false positives and inconsistent detection of vehicles, as well as a stiff USB-C cover.
AI Summary
Pros
- Excellent battery life (still full after 5 hours of riding)
- USB-C charging port
- Safety loop for attaching a strap to prevent loss
more pros in the review
Cons
- Occasional false positives (radar shows a vehicle when none is present)
- Radar drops detection too quickly when a vehicle matches speed
- USB-C cover is very difficult to open
more cons in the review
Key Points
- Price around 60€ per unit when buying two
- USB-C charging port
- Battery lasted at least 5 hours without depletion
more key points in the review
Where to Buy
COOSPO TR70 Radar-Rücklicht, intelligentes Fahrrad-Rücklicht, Bremswarnung, IP67, wasserdicht, Radfahren, Rücklicht, 7 Lichtmodi, Rücklicht - AliExpress 18
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