Review on ThorFire Bike Tail Light - USB Rechargeable, Waterproof LED Bike Light with 7 Modes - Bright Bicycle Rear Cycling Safety Flashlight for Adult & Kids MTB Bikes - Red, Blue & White Lights Included by Solomon Inks

These lights are exceptionally bright and easy to install and use. I bought two units for my new walker (Drive Medical Rollator DLX) for early morning walks and overnight trips to the mailbox at my apartment building. Both lamps arrived about a day ahead of schedule and were immediately fully charged. The instructions were a bit confusing as they haven't been updated for this iteration of the model. There are no energy-saving modes as shown in the accompanying manual, only the full energy mode (120 lumens). And also, contrary to the instructions, there is no separate bracket. It's a one-piece unit with two very strong rubber bands that attach it to the stand. To turn on the light, press the power button for about 2 seconds until it enters the first mode. You can then easily switch between all seven (7) lighting configurations by pressing the power button for approximately 0.5 seconds: (1) constant white light with alternating blue/red flash; (2) white fastness; (3) alternating red/blue flash [I used this mode to stop a stolen wheelchair, ;-)]; (4) two-stage red/white/blue sequential flash; (5) red/white/blue rapid sequential flash; (6) red emergency SOS; and (7) white flashing. To turn off the light, press and hold the switch for 2 seconds. These lamps are good value for money and are well made. I might buy a few more as spares, maybe one for my new cane (Ergocane). I wholeheartedly recommend them for use as medical mobility aids such as walkers, canes and wheelchairs.