Differences Between No Neutral Required and Neutral End Device Required Modes
No Neutral Required Mode:
The device functions as a Zigbee end device, and the external load has a minimum power requirement, with a minimum load of 3W. In this mode, smart lights are not supported, including but not limited to dimmable, color-changing, gradient, and lights with built-in controllers, as well as light strips.
Neutral Required Mode:
The device functions as a Zigbee router, enhancing the robustness and coverage of the Zigbee network in the use environment. This mode has fewer restrictions on external load, with no minimum power requirement. Smart lights are supported in this mode and can be used with the eWeLink app's "Detach Relay" function.
Troubleshooting Guide and FAQs
1. Why does the light bulb light up slightly or flicker after turning off the light?
This issue only occurs in the no neutral required wiring mode and may be caused by the following two factors:
(1) The device is in neutral required mode, but the actual wiring is no neutral.
You can check this fault via the app reminder. In some special cases, the product's operating mode may not switch correctly. For example, if the device was previously operating in neutral required mode but the wiring is changed to no neutral required without resetting the device, it may not switch to the correct mode.
Solution: Reset the device according to the 'Switch Wiring Mode' section above.
(2) The external bulb has insufficient power or is incompatible.
In no neutral required mode, the minimum power requirement for external bulbs is 3W. Therefore, the connected bulb must be at least 3W. Even if the bulb power meets 3W, it does not necessarily mean that it is compatible. No neutral required mode supports most major lighting brands, but bulbs from lesser-known or knockoff brands may cause issues, such as flickering or device malfunction, due to their internal circuit design and materials. Please choose carefully.
Solution: Replace the bulb with a brand-name bulb with a power rating of ≥3W.
2. For multi-channel products, when the A channel bulb is turned on, why does the B channel bulb, which is in the off state, light up slightly or flicker?
This problem is also caused by incompatible or poor compatibility of the bulbs used. It may be caused by the A channel bulb or the B channel bulb, and the latter is more likely.
3. What types of bulbs are supported, and what is the compatibility range?
The support and requirements for bulbs are as follows.
Incandescent Bulbs:
2400W@240V MAX (per channel or total), 1000W@100V MAX (per channel or total), minimum of 3W (for no neutral required mode only).
LED/CFL/Fluorescent Bulbs:
400W@240V MAX (per channel or total), 200W@100V MAX (per channel or total), minimum of 3W (for no neutral required mode only).