A: We strongly recommend using our adapters/cables (2A USB Charging Unit) to charge bike lights. If our adapter/cable is not with you, other chargers with a USB plug still works.

A: Our bike lights have IPX4 water resistance, which means riding in a drizzling for a short time will not affect the electronics. This protection does not apply to heavy rain conditions. However, we suggest riders to avoid prolonged riding in the rain and should they be riding in the rain they should slow down their speed as a matter of safety. Please also make sure that the charging port is completely sealed to prevent moisture from getting inside of the electronics.

Note: LED lights have IPX4 water resistance (The USB rubber cap needs to be sealed firmly). Water protection cannot be guaranteed under rainy weather conditions if any external power bank resources have been exposed to water due to an unsealed cap.

A: Around 500 cycles of rechargeable battery is estimated to be the full life of the battery. We strongly suggest that the Lithium-Ion battery should be charged fully, until battery indicator- green shows. When the low battery indicator- red shows, it is better to charge the battery right away. Please do not wait until it’s fully discharged.

Please also recharge the battery with the lights off. Recharging with lights-on might have a great impact on the life of battery because the temperature will be increase while the battery is charging which will affect the long term performance of the battery.

A: Our rear light is designed to have a light field with a wide angle. This is important as people behind you can see you no matter which angle they approach you from. Please select a bike light with an optimization of optics, stable energy and essential safety functions.

Special emphasis in design was put on: (1) Optimized optical and electric design (2) Wide light beam(3) Side visibility (4) A day-time mode (5) An auto mode (6) A mode memory (7)A power indication (8)An Universal strap (9) Multiple mounting (10) Easy installation and remove

A: Apart from a focus on brightness, we recommend using our head lights as they have been maximized for a field of light ahead of you and yet use a unique downward angle in order to light up the road without disturbances to others around you. Please select a bike light with an optimization of optics, stable energy and essential safety functions.

Special emphasis in design was put on: (1) Optimized optical and electric design (2) Cut-off line (3) Side visibility (4) A day-time mode (5) An auto mode (6) A mode memory (7)A power indication (8)An Universal strap (9) Multiple mounting (10) Easy installation and remove

A: A general bike light has no cut-off line to the sight line.  Often this will cause discomfort or dizziness for the upcoming drivers or riders in the opposite lane. CYCARTIS bike lights must have a cut-off line, which has no disturbing effect on the upcoming drivers or riders, which makes for a more user-friendly and comfortable environment for pedestrians, riders, and drivers. CYCARTIS bike light is equipped with a low battery indicator, which is a significant tool to signal to you when the battery is low for the sake of safety concerns. The side lights both on the front and rear light is required as well. You are able to see and be seen when you are on the road. We guarantee our lights are designed to increase your safety and become a protective guard around you as you ride