The Cygolite Hotshot SL 50 USB is a game - changer for road cyclists. It's engineered to be highly visible day and night, with 50 - lumen flashes that are nearly twice as powerful as the original Hotshot. This unique 2 - button design allows you to fine - tune each flash mode's tempo, increasing motorist awareness. With an amazing 250 - hour run - time, it gives you a strong presence on the road, anytime and anywhere.
- 50 - lumen flashes ensure you're visible in daylight and at night.
- Built - in 24/7 Safety Technology offers 6 versatile day and night modes.
- 6 modes: Steady, Zoom, SteadyPulse, DayLightning, Triple Flash, and Random Flash.
- Use the simple 2 - button interface to freely adjust the Steady mode's brightness and the flashing modes' flash tempo.
- The USB - rechargeable internal battery lasts up to 200 hours.
- A low - battery indicator warns you when it's time to charge.
- The light mode memory remembers the mode you were in before turning it off.
- It's compact, water - resistant, and weighs only 55 grams.
- Comes with a seat post mount.
- Run times: Steady: 2 - 200 hrs, Zoom: 3:30 - 10 hrs, SteadyPulse: 6 - 8 hrs, DayLightning: 9 - 36 hrs, Triple Flash: 36 - 96 hrs, Random Flash: 7 - 33 hrs.
- Charge time: 3 hrs

Using the Cygolite Hotshot SL 50 USB is easy. First, mount it on your seat post using the included mount. To turn it on, press the buttons on the light. You can use the two - button interface to switch between the six different modes, like Steady, Zoom, and more. You can also adjust the brightness of the Steady mode and the flash tempo of the flashing modes.
When the low - battery indicator lights up, it's time to charge the light. Use the USB cable to connect it to a power source. It takes about 3 hours to fully charge.
As for maintenance, keep it clean. Since it's water - resistant, you can gently clean it with a damp cloth. But don't submerge it in water for a long time. Also, when not in use, store it in a dry place. Remember, the light mode memory will save the mode you were in, so you don't have to set it up every time you use it.