3. "yeah one didn't work" In response to Reply # 2
i was trying to meet the free shipping threshold so i bought an even cheaper one (i was like 2 dollars away) and that one worked. thankfully the front light in the set was what failed and the cheap light was a front light so i was set.
i had a set from a bike store that was fine. i just had zero time to buy it there and i wanted to ride ASAP