I use a very light head torch zip tied that means i can control flash or beam easily and it rotates backwards and switched to red as a rear backup. I also have runners foot light clip on my shoes set to flash giving a up and down movement when pedalling and some side light from it too. Both these last forever on AAA batteries and watch batteries
I use a very light head torch zip tied that means i can control flash or beam easily and it rotates backwards and switched to red as a rear backup. I also have runners foot light clip on my shoes set to flash giving a up and down movement when pedalling and some side light from it too. Both these last forever on AAA batteries and watch batteries