We are pleased to now stock SMiDSY Brake Light Flashers (https://www.bikevis.com/product/motorcycle-smidsy-brake-light-flasher/) in our store.
These modulators produce a striking effect on normal halogen brake lights.... and help stop people running into the rear of your motorcycle at junctions (not a good feeling)
For those with LED setup on newer bikes we still stock BikeVis LED Brake Modulators (https://www.bikevis.com/product/bikevis-led-brake-light-modulator/).