Max Lumens: 90
AI Intelligent Braking
Battery Build-in
IP65 Rating
Stay seen and safe on every ride. The LYZEN™ ACRUNU REAR tail light combines smart brake sensing with a rugged, full-CNC aluminum body. From daily commutes to epic outdoor adventures, its 90-lumen output and IP65 waterproof rating ensure you're always visible.
- Smart Brake Sensing: Automatically detects braking to brightly warn traffic behind you for enhanced safety.
- Max 90 Lumens & 5 Modes: Be seen day or night with five versatile lighting modes for any condition.
- 42-Hour Max Runtime: Long-lasting 400mAh battery with convenient USB-C fast charging keeps you going.
- Full CNC Aluminum Body: Precision-machined aluminum construction for superior durability and a premium feel.
- IP65 Waterproof Rating: Built to withstand rain, mud, and dust in any weather condition.

| MODE | LUMENS | RUNTIME |
| Slow Flash | 10 | 25 hrs |
| Breathing | 10 | 13 hrs |
| Flash | 30 | 42 hrs |
| Normally On | 10 | 16 hrs |
| Sharp Flash | 30 | 38 hrs |
BULB TYPE:20 * COB high-brightness LED beads
BATTERY:400 mAh 3.7V lithium ion rechargeable battery
LENS OPTICS:Polycarbonate, 1 x spot optics & 3 x wide angle optics
BEAM ANGLE:270°
MAX LUMEN OUTPUT:90 lumens
LIGHT MODES:5
LOW BATTERY INDICATOR: Yes
BATTERY CHARGE INDICATION:Yes. (Red = charging / Green = charge complete)
BATTERY STATUS INDICATION:Yes, Central breathing light indicator
FITS BARS:All
RUN-TIME:13-42 hrs
CHARGE TIME:2 hrs
RECHARGEABLE:Yes (via USB-C connector)
WEIGHT:67 g / 2.36 oz
DIMENSIONS:4.72" x 2.76" x 1.89" / 120 x70x 48 mm
WATERPROOF:Yes, IP65 rating
CHASSIS:CNC 6061 Aluminium
OPERATING TEMP:-20 to 50 °C / -4 to 122 °F
STRAP MATERIAL:Medical grade silicone / Glass reinforced plastic
OPTIMUM CHARGING TEMP:20 to 22°C / 68 to 72 °F (Room Temperature)

On/off
Press and hold the switch for 0.5 seconds to turn/off the light.
Output Selection
With the light switched on, single click the switch to cycle through Slow flash→Breathing→Flash→Normally on→Sharp flash
Mode switching
With the light switched on, a sudden reduction in riding speed will automatically trigger the Braking mode. After two seconds, the light will automatically recall the previously used output.
Intelligent Memory Circuit
The light memorizes the last selected output excluding Braking. When turned on again, the previously used output will be recalled.
Charging
Note:
Battery Level Indication
Each time the light is turned on, the indicator will indicate the battery level and will last for 3 seconds. With the light switched off, single click the switch to check the battery status, the indicator will last for 3 seconds.
Green light on: saturated 100% - 85%
Green light flashes: sufficient 85% - 50%
Red light on: poor 50% - 25%
Red light flashes: critical 25% - 1%.
Low Voltage Warning
When the voltage level drops below 3.0V, the light is programmed to downshift to a lower brightness level. The battery level indicator blinks red at 3Hz to remind you to recharge the battery. To ensure normal use, the light will not turn off automatically and will work till the battery level runs out.
If this method doesn't work, please contact your authorized distributor.
What kind of LEDs are used in LYZEN™ ACRUNU REAR ? Does LYZEN offer to replace LED?
A: The LYZEN™ ACRUNU REAR uses CREE XP-E2 red LEDs.LYZEN does not provide LED replacement services for the time being, and users are not recommended to replace the LEDs independently, which may affect product performance and cause product damage.
What is the working voltage of LYZEN™ ACRUNU REAR?
A: Operating voltage is 3.0~4.2V, limit operating voltage range: 2.8~4.2V.
What is the viewing angle of LYZEN™ ACRUNU REAR?
A: The viewing angle is 270°, and the floodlight luminous angle is 106°.
Is LYZEN™ ACRUNU REAR rechargeable? How long is the charging time?
A: LYZEN™ ACRUNU REAR is rechargeable with a USB Type-C charging port. The indicator will display red while charging and will turn green when fully charged. The charging time is about 2 hours.
Can LYZEN™ ACRUNU REAR be used in severe weather such as rain and sandstorm?
A: LYZEN™ ACRUNU REAR features IP65 rated protection: fully protected against dust and foreign objects, can withstand heavy rain and splashes.
Why does the LYZEN™ ACRUNU REAR happen to flicker?
A: The reasons that may cause the lamp to flicker, shine intermittently or even fail to illuminate: Poor battery level. Solution: Recharge the battery.
If the above methods don't work, please contact the distributor.
LYZEN™ ACRUNU REAR will automatically reduce the brightness after using it for a while, and it can't light up higher gears, why is that?
A:When the voltage level drops below 3.0V, the light is programmed to downshift to a lower brightness level. The battery level indicator blinks red at 3Hz to remind you to recharge the battery. To ensure normal use, the light will not turn off automatically and will work till the battery level runs out.
Does the LYZEN™ ACRUNU REAR have a memory mode?
A:The light memorizes the last selected output excluding Braking. When turned on again, the previously used output will be recalled.Avoid repeating the settings each time.
What should I do if the BC06R needs repair?
A:
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