NiteRider's Lightning Bug USB Combo lights are tiny, mount-almost-anywhere rechargeable safety lights that install without tools. The headlight has a bright, 120-lumen LED with high, low, daylight, and flashing modes. The taillight sports a bright 25-lumen LED with three modes (high, low, and flashing patterns) that will keep you seen from up to a half mile away. Both lights easily mount to your bike with the included rubber straps. Plus, you can charge them both in under 3 hours from any USB port!