It’s an $11 Amazon tail light, here’s the link if you’re looking for it
Link
LivTee Universal 8" Flexible LED Light Strip with Tail Brake Stop Turn Signal Lights All-in-one for Motorcycle Scooter Quad Cruiser Off Road, Red/Amber https://www.amazon.com/dp/B07W8L4VGR/ref=cm_sw_r_cp_api_i_ZVR8HF5ZRYGSMYNH4PAW?_encoding=UTF8&psc=1
Found it on Amazon. I fabricated a piece of metal that I mounted on to the tail end of my fender for me to install it onto because I wanted it to be right below the fender and follow its curvature so it could look more natural and conceal the wire better. I also had to rewire the backend to sync it with my turn signals and have it be a taillight also LED taillight
u/Little_tuna turns out even your tiny lights were too big for the Ducat with R&G Tail Tidyi + 780FZ rails - the rails literally cover up the hole where the turn indicators are supposed to plug in. As a result, I ended up buying an LED strip which I pasted and zip-tied for good measure to the top case attachment plate. I had to buy adapters to convert the bare wires to the Ducati turn signal plugs.
I soldered the negative lead from the LED strip to both negative wires from the two adapters, and each positive lead from the adapters to the left and right wires, and since I had the stock brake light still there (and couldn't find a decent adapter for it), I just heat shrink tube wrapped the brake light off.
Total cost was about $20 plus shipping, and it actually works!
On my D-Class I installed this LED strip on the frame below my seat: https://www.amazon.com/dp/B07W8L4VGR?psc=1&ref=ppx_yo2ov_dt_b_product_details Required a 12v step-down converter, a control switch and a flasher relay, but the results are phenomenally bright. (Plus I installed some HELLA motorcycle horns that are nice and loud too!) Here are some pics I posted a couple weeks back: https://old.reddit.com/r/ebikes/comments/wqpgj6/dclass_with_some_modifications/
I used this brake light I took the chance and it is really bright, not bad for a cheapo. Even though it does have integrated turn signals, I still added these smaller ones from Revzilla. They fit in the original holes no problem, it is hard to see in the picture because the size and its dark. They are bright as well. I used Bondo for the hole where the original brake light was and painted over it, I taped under the hole and filled it up and sand it down after it dried.