Garmin Varia RTL510 Rearview Radar Tail Light

Garmin Varia RTL510 Rearview Radar Tail Light
Price: $199.99
Discontinued Online
Read Reviews
Write a Review
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Note: Manufacturer does not allow coupons

Stay safer on the road with the Garmin's Varia RTL510. Unlike most taillights, the Varia has two main functions: a car sensing radar, and a safety taillight. The radar syncs with Bluetooth enabled Garmin devices and provides a visual and audible alert when a car is approaching. The taillight has up to one mile of daylight visibility and can be seen from 220-degrees, allowing drivers to see you well before the radar senses them. In its brightest mode (Day Flash) it produces 65 lumens and lasts up to 15 hours. With an improved mounting system, vertical design, and longer battery life, this light knocks its predecessor out of the water. With the Garmin Varia, see and be seen.


  • Vertical design
  • Vehicle detection (140 meters away)
  • 220-degree visibility

Mounting system
Charging cable 
Safety packet


Battery life: 15 hours in Day Flash mode, 6 hours in solid or Night Flash mode
Modes: 20 lumens on solid mode, 29 lumens on night flash, 65 lumens on day flash
Wireless ConnectivityBluetooth® and ANT+ connection to all Garmin bluetooth-enabled devices
Weight: 70g


This product was added to our catalog on June 13, 2018

Verified Owner
Saturday, Aug 3 2019 (about 2 years ago)
Garmin Varia RTL510 Rearview Radar Tail Light
work as expected. Nice to have but need the seat adapter to be positioned high above the rear wheel.
Verified Owner
Monday, Jun 24 2019 (about 2 years ago)
Garmin Varia RTL510 Rearview Radar Tail Light
Works terrific. On a busy street, you know there is traffic, you don't need this. But on more lightly travelled roads you dont hear all the traffic.

Going straight it is not so important. Turning right I can get along without it. Turning left, very much a safety issue.

Most drivers won't hit you, its the ones that don't see, don't want to see, or don't care to see you that will kill you.
Verified Owner
Sunday, Oct 14 2018 (about 2 years ago)
Garmin Varia RTL510 Rearview Radar Tail Light
I used to wonder why I would need this, never thought it was worth the money, now I won't ride without it. So much more relaxing when you know someone is coming up behind you. Instead of constantly hugging the lines, I'll move out a little when I know cars aren't on me and get out of their way when they are coming.
Verified Owner
Wednesday, Oct 10 2018 (about 2 years ago)
Garmin Varia RTL510 Rearview Radar Tail Light
Very nice product for safety and piece of mind. Works as described. Picks up cars from way back. I use day flash mode exclusively, even at night. Brightest mode and longest lasting battery life (so I'm not sure when I would ever use the other two modes??). Sometimes has a bit of difficult picking up slow moving cars and keeping the alert, when your sitting in the middle or front end of a decently sized peloton, especially on a winding road, but that's more of a 'perfect storm' scenario.
I can definitely say it's never missed a car, and I've never been overtaken by surprise.
I don't ride without it, so it's given me a daytime running light which I've never used in the past.
Great for those back road countryside rides.