·High-Intensity LED & Brake Sensing Advancement:Illuminate your surroundings with our rear bike light's high lumen COB LED. featuring smart sensor technology that activates a brake light when you slow down. The light emits a high-intensity flash for 5 seconds, alerting riders behind you for enhanced safety

·Dynamic Modes & Easy Install: Choose from 4 dynamic light modes: (1) Normal Flash, (2) Breathing Flash, (3) Fast Flash, (4) Steady On. Tailored for diverse riding conditions day and night. Effortlessly install with metal under-seat or rubber band seat post mounts. Fits road, mountain, cruiser, scooter

·Smart Auto On/Off & Battery Efficiency:- Experience intelligent functionality with our bike rear light. Equipped with Motion and Light Sensors, it automatically turns off after 30 seconds of inactivity. Once movement is detected or your bike is in motion, the light reignites (auto on/off applies to modes 1 and 2). For continuous daytime visibility, opt for modes 3 or 4 to bypass the Light Sensor (Brake sensing active in all modes)

·Extended Battery Life & Intuitive Power Display:Stay powered during your rides with the 400mAh Li-ion battery. On a full charge, enjoy up to 50 hours of usage. The built-in power indicator features four blue breathing lights, each indicating 25% battery capacity, ensuring you know when to recharge

·Durable Build & All-Weather Ready : Crafted from premium aluminum alloy, our bicycle brake light boasts an elegant metallic finish. Designed to withstand diverse weather conditions with an IPX6 Waterproof rating, making it suitable for any ride

Smart Light Sensing

Using highly sensitive smart sensor chip Able to correctly detect vibration and braking action

COB LED +Ensca lens

High visibility at night but not dazzling

Comparison Of Old & New Technology

Compared with the old taillights, the new Q5 taillights use more technical quality lamp beads and lenses. Make the light soft, not hurt the eyes, more secure and stable.

Old Model-fog Lens

Low cost, simple process, soften light by reducing brightness

Q5-Optical Lens

High cost, complicated process, keep light transparent and bright without glare

Old Model-LED Patch

Low cost, simple process and short life More dazzling at the same brightness

Q5-COB Inversion

High cost, complicated process Longer life, more stable Softer at the same brightness

Brake Sensing-Integrated Accelerometer

Q5 comes with a built-in accelerometer/ high performance MCU and powers by the three-level digital filter algorithm which ensure correct detecting a brake

Shock Sensing

Automatically turn off the lights when there is no vibration for 30 seconds, and turn on automatically when you feel the vibration (Except in constant light mode)

Smart Light Sense

Built-in light sensor Works in harmony with vibration induction Smart start and stop saves power The strobe and constant light modes are manually controlled and are not affected by the sensing element

The SOS and Bright modes are manually controlled and are not affected by the sensing element

Battery Indicator

The indicator light flashes every 6 seconds, prompting the current battery

Switch modes at will

Click to switch the flashing mode: Flashing-Breathing-SOS-Shutdown

IPX6 Waterproof Design

Proper to any abusive environment

Compact and Lightweight design

CNC Aluminum Alloy Shell

Anti-scratch and anti-fall