Rear that will last for years.
Exposure TracerR
Buy Exposure Lights TraceR 75lm Day Bright Rear Light Now at Pushys. Lowest Price, Secure Shopping and Fast Delivery from Australia's Best Online Bike Store
www.bikebug.com
And get the saddle rail mount, gets it right up under the saddle away from interfering with a dropper post and looks nice and neat.
Buy Exposure Lights QR Saddle Rail Bracket for Flare Black/Red Now at Pushys. Lowest Price, Secure Shopping and Fast Delivery from Australia's Best Online Bike Store
www.bikebug.com
I reckon my TraceR is 8yrs old and I have just replaced the battery with the battery from a Trace (front equivalent), I used these lights on every road ride, every commute and MTB nightride for years.
You get 6 hours on high pulse when they are new, I was down to about 2 hours on high after 8 years. Only replaced the battery a month ago so hope to get another few years.
I might be able to afford Exposure front lights now that my kids have stopped riding
previously tried to keep all our lights interchangeable as it was easier to load someone up with batteries and light power so went for middle range stuff.