NiteRider Lumina Micro LED 220 Combo With Solas USB Rechargeable Bike Lights Comes with Lumina 220 Headlight and Solas 2W Taillight Low Battery Indicator and Lock Out Mode SYSTEM INCLUDES: LED Headlamp / Solas Taillight / Internal Li-Ion Battery / Handlebar Mount-Fits up to 31.8mm / USB Charging Cable