1829 bicycle rear taillight - 6 lighting modes for versatile visibility - Strong red light - Weak red light - Red light quick flash - Red light SOS flash - Strong white light - White and red light flash - Uses SMT LED beads to deliver high lumen output and reliable performance - USB rechargeable battery - Full recharge in about 2 hours using a USB cable - Runtime ranges from 2.5 to 6 hours depending on mode and power setting - Solar charging capability - Can be charged anytime in sunlight, including while riding - No separate charging port required when sunlight is available - Flexible mounting and adjustable angles - COB 90 degree folding design - Multiple light angles can be adjusted at the seat post for optimal visibility Key benefits and what it solves - Enhances rider safety with high visibility from the rear, helping drivers notice you in urban and low light conditions - Flexible signaling options with multiple red and white modes, including SOS, to suit different environments and emergencies - Convenient charging options reduce downtime: fast USB recharge plus solar charging for outdoor use - Adjustable lighting angles ensure you can direct light where it’s most effective on different bike setups Use scenarios - Night city commuting - Use the strong red light or white light modes for clear rear visibility in traffic, with one of the red flash modes for conspicuity in busy streets - Weekend rides or camping trips - Rely on solar charging to keep the taillight powered when you are off the grid or away from power outlets - Emergency signaling or low-visibility conditions - Activate the red SOS flash or white-red flash to attract attention and communicate a need for assistance Product attributes - Model: 1829 rear taillight - Lighting technology: SMT LED beads for high lumen output - Modes: six total (six distinct red/white signaling options) - Power: USB rechargeable battery; solar charging capable - Design: COB 90° folding with adjustable seating post mounting angles Note: All specifications are maintained from the original model descriptions and functions.