The Moon Helix Pro Rear Light is a compact, USB-C rechargeable rear light built for reliable visibility in all conditions. With a 150-lumen COB LED and intelligent sensor-driven features, it combines high output with smart functionality for enhanced safety, longer runtime, and day-to-day ease of use.Key Features and Benefits:150-lumen COB red LED output: Produces a wide and uniform light beam that increases visibility to other road users. This helps keep you clearly seen from a distance in various traffic and lighting conditions.Intelligent brightness adjustment: Automatically adjusts light output based on surrounding light levels. This ensures optimal brightness at all times, extending runtime and reducing unnecessary glare.Motion-sensing technology: Detects when the bike is in use or stationary. The light turns off automatically when not in motion, conserving power and reducing manual steps.Parking mode function: Keeps the light active when the bike is stopped for short periods. This maintains rear visibility at junctions or during brief stops, improving roadside safety.CNC aluminium heat sink casing: Effectively disperses heat from the internal components. This helps maintain LED performance and extends product lifespan.USB-C rechargeable lithium polymer battery: Fully recharges in 2.5 hours with universal USB-C. This short charge time ensures fast turnaround between rides.80-hour maximum runtime: Delivers long-lasting performance, reducing the need for frequent recharging. Ideal for regular commuters or multi-day rides.Side visibility and IPX7 water resistance: Enhances visibility from multiple angles and protects against rain or splashes. This ensures reliable performance in all weather.The Helix Pro is built for riders who need smart safety performance without the hassle. Its auto-adjust brightness and motion detection reduce the need for manual input, while the long battery life and compact build make it suited for urban and endurance riding. With five modes, side illumination, and durable waterproof housing, it s designed for all-day reliability.Stay visible, ride with confidence, and spend less time managing your lights. The Helix Pro brings together efficient power use, robust design, and intelligent operation making it a dependable choice for everyday cycling.Specification:COB red LEDMax. Lumens: 150LM (FL-1 tested)Max. Runtime: 80 hrs (FL-1 tested)Max. Intelligent operation standby time: 100 hrsBattery Type: Li-PO built-inRecharge Time: 2:30 hrsSize ( W x D x H):  22 x 19.5 x 66 mmWeight: 35gFeatures:5 modes: DAY FLASH / STEADY FLASH / FLASH 1 / MODE 1 / MODE 2CNC Aluminium heat sink casingINTELLIGENT OPERATIONIntelligent brightness functionIntelligent motion sensing functionIntelligent parking functionLock ModeAuto safe modeDay flash modeMode memory functionVariable Lumen SystemLow battery, charging and fully charged indicatorAutomatic fully charged cut-off systemSide visibilityWater resistance (IPX 7)Rechargeable lithium polymer batteryUSB Type-C charging cable