Quick Summary
The Kemsiuy XJ114 is a rechargeable front and rear bike light set, with eight LEDs and an independent 1000 mAh battery in each light. Four lighting modes, five brightness levels and control over the two LED rows let you choose between the available settings.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Set | One front light and one rear light, each with eight LEDs and a 1000 mAh battery. |
| Lighting modes | Slow flash, strobe flash, fast flash and steady on. Each light also has five brightness levels and can use one row of four LEDs or both rows. |
| Approximate brightness | 253 lm for the front light and 180 lm for the rear light. |
| Stated runtime | About 2.5 hours for the front and 3 hours for the rear at maximum-brightness steady on. With one row of four LEDs in slow-flash mode, both are stated to run for over 50 hours. |
| Charging | Both lights charge via USB-C. Two USB-A to USB-C cables are listed; charging from empty is stated to take about 2.2 hours. |
| Water protection | The listing gives an IPX6 rating. This does not mean the lights are suitable for submersion. |
| Mounting and dimensions | Tool-free manual mounting is described, with horizontal or vertical orientation. Each light is approximately 1.5 × 5.5 × 3.4 cm and weighs about 40 g. |
What to Compare Before Buying
Runtime depends on the selected mode and LED-row setting. The longest stated figure applies to slow flash with only one row of four LEDs lit; it is not the runtime for maximum-brightness steady-on use. Consider which setting you expect to use when assessing whether the stated figures suit your rides.
Each light has its own battery, so both need charging. The listed cables have a USB-A plug and a USB-C connector; check that this arrangement works with the USB power source you intend to use.
Compatibility, Size and Fit
The mounting is described as tool-free, but no handlebar diameter range is given. Check that the mount can fit the intended position on your bike, and consider the listed dimensions when judging available space. The lights can be oriented horizontally or vertically according to the listing.
Setup and Correct Use
The described mounting uses a buckle and a matching slot: secure the mount to the handlebar and snap the light into its slot. Check that the light is firmly seated and aimed as intended before riding, and follow the manufacturer’s instructions for mounting and operation.
For a pre-ride check, select the mode and brightness you plan to use and confirm both lights are charged. This helps you keep the mode-specific runtime figures in mind rather than relying on the longest stated duration.
Common Buyer Questions
Do the lights use the same charging connection?
Both charge via USB-C, and two USB-A to USB-C cables are listed.
Can the lights be submerged because they have an IPX6 rating?
No. The rating should not be treated as permission to submerge them.
Before You Decide
Check the mount fits your bike, the USB-A to USB-C cable arrangement suits your charging source, and the runtime for your chosen mode meets your needs. Treat IPX6 as a water-protection rating, not a submersion rating.
