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  • 12/07/2017

    In my case the internal shock sensor (a tiny spring-shaped conductor around a spike on the PCB) is very insensitive: the lamp turns off every three minutes while cycling, only switches back on to a very strong tapping. Maybe the sensor should be short circuited, because in this state the auto power off (or autostart) function is a bug, not a feature. More detailed technical info: the main led current is not stabilized, it varies between 1A - 0,2A (as the battery voltage drops 4,2V to 2,8V), the brightness decreases in a similar ratio as the battery discharges. The maximal luminous flux can be about 350..400 lumen - based on the measured led current and Cree XP-G datasheet - in state '100% main light', but on average around 260 lumen (with 3,7V typical Li-polymer battery voltage and 2,2W led power). In power saving / 50% mode the leds PWM frequency is around 260 Hz.

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  • 17/07/2017

    I am impressed by the build quality. It has 1200 mAh battery and Cree white led and two small red led. With holder has 72 gr weight. Nice light patern

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  • 19/06/2020

    I'm surprised: very small (see the 1st picture where it's accompanied by an AA battery) and absolutely perfect! First of all: you can see everything up to 40m on the street before your bicycle! There are useful functions: adaptive light (according to enviromental lights), parking light (2pcs of red LED, see the 2nd picture), normal light, strong light and flashing light. It is made from good materials, the color of the light seems to me pure white. There is a function LED on its top: it is blue when you switched adaptive light mode, red until charging (by the attached mini USB cable), green when it's fully charged. Once again: I'm surprised how perfect is this small gadget, highly recommended!

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  • 28/07/2021

    My favorite product and ultimate vfm from the China market. The fourth one i buy. In short, very good brightness. Excellent autonomy and very light construction. The light sensor is instantaneous and convincing with its operation. The main thing is that i have the first one bought over a year, tested hard in cold, hot and having fallen down sometimes and yet it works like new.

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  • 14/12/2017

    The package states 400 Lumen not 600 as they sell it. But still value for your money. Band may be sturdier maybe...

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  • 27/04/2021

    Perfect bike light. The light is bright enough to see the road ahead for 30 meter. Also its be seen from the side. Its easy to install on bike (its mount base holds well) and the light easily removed and fit in your pocket as its very compact. You open by long press the top button (-it is a bit hard button in feeling).It open in smart mode and a blue indicating led at top. Here light intensity changes according to enviromental light. Then if you short press the button you go to red light (2 red LED-parking mode),then to low light and then to high. At last there is the slow flash mode. The battery life is more than 1 and half hour. +In light rain I have no problem. The colour is cool white. The quality of material is good. The upper part seems aluminium and the lower plastic. Great product, highly recommended!

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  • 11/11/2020

    The light is incredible. Not the typical cheap china stuff wich is cool but only on the first look. NO, this realy small light is bright AF and the orientation/design of the lamp/reflector brings the light on the floor in front of you (where you need it). I ordered two of this lights, when they arrived i fully charged them up and let the Show begin to test the lifetime of the Battery. The manual says 2h at 100% brightness (and it is bright). Both lamps get a little bit warm on top (aluminium top for heat discipation, works well). The first shut down after 2h 20 min, the second 10 Minutes later after 2 1/2 h. Both under 30/35°C (inside the house without cooling wind from driving) Well, the mount is okay but doesnt look that strong, hope it wont brake. The article discription and the manual says its for german StVO/StVZO, maybe it is because its not blending vehicles in front of you, but there is no "K-numbre" or any other number on it, so may police in germany give you a fine.

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  • 16/02/2018

    Very good brightness. Sometimes it auto turn off in smooth riding. Modifing sensor can help it has more sensitivity. To modify it. You can bend center metal to be nearly a spring using nose pliers.

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  • 27/09/2019

    I'm very impressed.. Awesome bicycle light in a small size.I fully recommend it.

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  • 02/12/2017

    Can I get a new "Clamp" or is there no spare parts for this? without this part the light is useless. help!

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