NiteRider Solas 100 USB-Rechargeable Bicycle Tail Light — 100 Lumens, Daylight-Visible Flash

The NiteRider Solas 100 is a compact, USB-rechargeable 100-lumen rear bike light designed for strong daytime visibility and easy mounting for road, mountain and commuter cyclists.

Compact but bright, the Solas 100 combines two high-output LEDs, selectable steady and flash patterns, and a fast USB recharge to keep you seen on group rides, busy streets, and dawn or dusk commutes. Its quick-release mounting, waterproof rating, and limited-lifetime coverage for mechanical parts make it a practical choice for riders focused on dependable rear visibility without fuss.

How bright is the Solas 100 and what light modes are available?

The light produces 100 lumens from two LEDs and offers both steady and daylight-visible flashing settings so you can choose coverage or attention depending on conditions. Modes include two steady intensities and two pulse/flash options optimized for daytime visibility.

• High steady and low steady settings for nighttime or extended battery life
• PULSE FLASH and FAST FLASH designed to be visible in daylight
• Run times: Low ~15.5 hours, High ~10.5 hours, Pulse Flash ~4.5 hours, Fast Flash ~7.5 hours

How long does the battery last and how quickly does it recharge?

Internal Li-Po battery delivers multi-hour runtimes depending on the chosen mode, with enough endurance for long rides or multi-day use when managed carefully. USB charging is quick and straightforward so you'll be back on the bike after a short charge.

• Full recharge in about 2 hours using the included USB cable
• LED charge indicator switches from red to blue at full charge
• Low-battery alert flashes blue when above ~20% and red below ~20%

How does the Solas 100 mount and is it easy to remove between rides?

Installation is tool-free: a flexible seat-post strap secures the mount and allows angle adjustment so you can aim the beam. The light itself snaps onto the mount and releases instantly via a quick-release tab, making theft prevention and daily removal simple.

• Seat post strap mount with angle adjustment for precise output direction
• Quick-release tab removes the light while leaving the mount on the bike
• Backside clip for attaching to belts, packs, or saddle bags when off the bike

Is the Solas 100 durable and backed by any warranty?

Designed for real-world cycling, the Solas 100 is built to resist dust and water and uses rugged components to tolerate regular use. NiteRider supports the light with a limited lifetime covering mechanical components and LEDs, giving riders added confidence in long-term reliability.

• FL1-standard IP64 dust and water resistance for varied weather
• Limited lifetime coverage for housings, covers, mounts, fasteners and LEDs
• Sturdy construction intended for daily commuting and off-road use

Who this is for: Cyclists who want a bright, compact tail light that excels in daytime visibility and installs or removes quickly will appreciate the Solas 100. It suits commuting riders, group-pack cyclists who prefer a ‘group ride’ flash setting that reduces distraction, and weekend adventurers who need dependable battery life and easy USB recharge.