BBB Spark Rear Bicycle Light with Compatible 2.0 USB-C (BLS-152)

The "Spark" light has been modernized with USB-C specifications. Supports fast charging via USB-C. Runtime Safety Mode: Ensures at least 2 hours of flash mode even when the battery is low. 20Lm day flash mode Size: L43mm x W27mm x H23mm Approximate weight: 23g Estimated charging time: 1 hour 45 minutes Maximum illumination time: High 10 lumens 3 hours (+5 hours flashing) Low 3 lumens 10 hours (+4 hours flashing) Flash 3 lumens 28 hours Day flash 20 lumens 20 hours (+2 hours flashing)