Bluetooth lights review - DeLights by Findrs

The DeLights by Findrs automatic bike light on my Argo Cargo bike.

The DeLights by Findrs automatic bike light on my Argo Cargo bike.

One of the Provincetown Bicycle Committee's safety messages is "light up the night." It’s easy to forget to turn on bike lights when you start your ride in a well-lit area. I'm also not out at night much, so turning on my little blinky lights isn’t a habit. I started looking around for a not-horribly-expensive automatic bike lights quote a while ago.

I backed a Kickstarter project for the DeLight by Findrs back in 2017. It’s a nifty Bluetooth-enabled bike light. When it first arrived, I couldn’t get it to work with the app (the fun of being Kickstarter beta tester!). Their support folks tried to be helpful, but most of the app and the support pages were written in Danish and Google Translate wasn’t very good at making sense of it. Eventually the lights were sent to my box of random bike bits to fiddle with in the future.

I tried setting them up again last fall, and their updated iPhone app worked perfectly this time!

I attached the front light to the fork on the Argo above the front wheel and attached the rear red light to the rack on the bike's back end. (This did require a trip to the hardware store to buy a screw long enough to fit through the fork on the Argo. US bike racks often have different screw-hole configurations from European bike racks, so you might need an adapter.)

Real-world use

DeLight by Findrs (from their Kickstarter).

DeLight by Findrs (from their Kickstarter).

Surprisingly, these things work *really* well! They have built-in light and motions sensors, so they turn on completely automatically. The rear red light has some kind of accelerometer and functions as a *brake light* when I'm slowing down. They stay on for 30 seconds after I've parked, and they notify my phone of their location. (No more "where did I park" confusion!) Since I mounted the front light on the fork, I also like having the front light turn with my steering so I can see where I'm going.

The front light is bright enough to see road conditions, which is good for potholes and any random debris that might be in the street.

They also turn on at night as soon as the bike is moved or jostled. (In high wind conditions if the bike gets rocked while parked, they will turn on as well.)

Battery life

The batteries lasted about a year. That’s not actually very long give the little night riding that I do. Changing the batteries requires a little 2.5mm allen wrench, so have your bike tools handy when you have to change the batteries. Oddly, the rear light uses AAA batteries and the front light uses AA batteries, so you need both types.

Fortunately, the DeLight app does a great job of letting you know that the batteries are low, so you won’t be out riding and suddenly find yourself without a light. (The app is available in both the App Store and on Google Play.)

If you think you might want to add always-available, automatic lights to your bike, these are a great lower-cost alternative to a hub generator.

These things also seem to be very water-resistant, and living outdoors in snow and rain they still perform well.

Pricing & Availability

You can buy the DeLights direct from Findrs web site. At this writing, each light is 279 Danish kroner, which is about $50 USD. They are shipped from Denmark, so your actual cost may vary. Compared to the cost of adding a hub generator and hub-enabled lights, these are a great deal.