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Anonymous users2024-01-241. The 18650 lithium battery can be lit normally, indicating that there is definitely no problem with the LED lamp beads;
2. Connect to 220V power supply, and there is a faint light flashing, indicating that there may be a problem with the AC power adapter or battery;
3. The replaced AC power adapter is also faintly flashing, indicating that there is a problem with the primary battery, resulting in excessive current of the adapter and unable to provide the current required by the LED.
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Anonymous users2024-01-23Judging from your description, it should be the strobe caused by the power drive of the bedside lamp!
There is one main reason for your situation:
The bedside lamp adopts a relatively simple resistor-capacitance drive, so if the lamp is directly plugged in, there will be a strobe phenomenon, and the alternating current has ripples, which is obviously the filter position is not taken into account, or in order to save costs, the filter is not set at all, due to the single-sided conduction characteristics of the light-emitting diode, and it is more sensitive to the current, and the constant current power supply is not used, the ripple is unstable, which will lead to the current and voltage that the LED lamp beads receive at all times are different, so the brightness will continue to change, which causes flickering. If the fluctuation range is too large, it will even burn out the LED lamp, and the 18650 is a DC constant output power supply, so if you use this power supply to power the LED, the LED will perform very smoothly!
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Anonymous users2024-01-22The current voltage of the LED light source does not match the current voltage of the driving power supply.
When the equipment is in standby, it consumes a little power to maintain the basic operation of the control circuit--- sensor detects external environmental data and determines whether to start working. An excellent automatic control device should consume very little power during standby, and you can also manually turn off the power during the day to save energy.
If the complete three-phase balance, 300A*380V*, greater than 130KW, yes, but if the three-phase is unbalanced, the total power required should be calculated by the maximum one-phase current, and it is easy to overload the difference by such a point.
It's okay! But you have to be safe. I also have wires at the head of the bed here, it's fine. >>>More
The toilet should be alternating current, and it must be alternating current for convenience, so if you still use direct current, can it be convenient?
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