Does the light frequency/intensity change as cars are approaching - to alert the driver of the cyclist?

As the light is on the seat post facing on coming traffic it flashes. A driver would not necessarily know about the sensor, so it does not make a difference. Your bike computer will emit a beep as a vehicle gets closer, similar to parking sensors on a car. It also shows a car symbol on the bike computer and the beep with be faster if a vehicle is coming up behind fast. It's a fantastic bit of kit. If you are cycling with another person the beep is loud enough so they too are alerted to a vehicle or motor bike coming up behind.

Anyone use this with a garmin 520 plus if so how do you find it works ?

Although i haven't a 520 plus, I've used the varia with a 25 and a 530 with no issues - clear display and audible beeps (that you can turn off in settings) when a vehicle is approaching. I don't leave the house without mine as it gives me so much more awareness of traffic approaching from behind, usually a few moments before you hear anything.

What’s the difference to the more expensive £299 one?

I believe £299 includes the Garmin bike computer too as a package. If you have a bike computer already or use your mobile phone the light sensor can be linked to various ones. Mine was linked to a wahoo bike computer I already had so didn't need to spend the extra.

Is this a rtl 510, which is a different product to the 515? that is what is printed on the back of the light, on the product picture. thanks.

The RTL515 has a light and radar, the RTR315 is just the Radar and the newer RCT715 is the camera, radar and light. The RTL510 is the previous model of the RTL515. I do not know when they changed the designation.

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Garmin Varia RTL515 Rearview Cycling Radar, Built in Tail Light, Compatible with Edge Bike Computer, Multiple Display options, Visual and Audible alerts, Daylight visibility up to 1 mile

Garmin Varia RTL515 Rearview Cycling Radar, Built in Tail Light, Compatible with Edge Bike Computer, Multiple Display options, Visual and Audible alerts, Daylight visibility up to 1 mile

Product ID: 238907204

Details

Brand
Garmin
Colour
White
Item weight
0.01 Ounces
Light Output Maximum
1000 Lumens
Material
Plastic
Mounting type
Seat Mount

💡1000 lumens tail light

📡140m rear radar range

📱Smartphone & Garmin device sync

€ 432.63

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Description

🚴‍♂️ Stay Ahead, Stay Seen — Ride with Radar Confidence!

PELOTON READY LIGHTING - Low-intensity flash mode respects fellow riders’ eyes during group rides.
SMART ALERTS ON THE GO - Visual, audible, and vibration notifications keep you alert without distraction.
BLAZING BRIGHT TAIL LIGHT - 1000 lumens daylight visibility up to 1 mile keeps you seen and safe.
RADAR DRIVEN REAR AWARENESS - Detect vehicles up to 140 meters behind for ultimate safety.
SEAMLESS DEVICE INTEGRATION - Pairs effortlessly with Edge bike computers, Garmin wearables, and smartphones.

The Garmin Varia RTL515 is a cutting-edge rearview cycling radar combined with a powerful 1000-lumen tail light. It detects vehicles approaching from behind up to 140 meters away and pairs seamlessly with Garmin Edge bike computers, compatible smartphones, and wearables. Featuring visual, audible, and vibration alerts, plus daylight visibility up to 1 mile, it enhances rider safety and awareness. Its compact design fits most road bikes and includes a peloton mode for group rides.

Specifications

ASIN	B08FTH4435
Auto Part Position	Rear
Best Sellers Rank	11,615 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 22 in Cycling Taillights
Brand Name	Garmin
Colour	White
Customer Reviews	4.8 4.8 out of 5 stars (1,116)
Global Trade Identification Number	00753759254131
Included Components	Garmin Varia RTL515 Rearview Cycling Radar and Tail Light, UK/France
International Protection Rating	IPX5
Item Dimensions L x W x H	9.9L x 2W x 39.6H centimetres
Item Type Name	010-02377-00
Item Weight	0.01 Ounces
Light Output Maximum	1000 Lumens
Manufacturer	Garmin
Manufacturer Part Number	010-02377-00
Manufacturer Warranty Description	2 year manufacturer
Material Type	Plastic
Model Number	010-02377-00
Mounting Type	Seat Mount
Number of Items	1
Number of Packs	1
Number of settings	1
Power Source	Battery Powered
UPC	753759254131
Water Resistance Level	Not Water Resistant

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€ 432.63

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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