License Plate Light, License Tag Screw Bolt LED, Super Bright 12V Waterproof License Plate LED Bulb Motorcycle Tag Lights Legal for Motorcycle Bike Truck RV ATV, Cool White(2PCS)

Search for "License plate stud light" They are low-profile lights with threaded ends like a bolt; they replace the screws that hold in your plate and have a light on the end to keep you legal. You could also mount them directly into the bumper on either side of the plate if you don't mind drilling a hole. Something like this: https://www.amazon.com/Motorcycle-License-Plate-Bulbs-Waterproof/dp/B07MYXNLZ5?th=1