The LED lights on our kitchen range hood have flickered out and I'm trying to order replacements, but not from the manufacturer, who unfortunately have none in stock and are waiting for a shipment of parts from overseas. No telling how long that may take at present. The LED lights, when turned on, are very faintly lit and there's a high-pitched whining buzz, like a mosquito near your ear, so I am also going to replace the LED driver. Under the present circumstances, technicians at the company are not available to answer questions and the customer service rep who is answering the phone and responding to emails knows even less than I do about LEDs.
With the multimeter set to AC (~), and the Range set to no fractional decimal positions, and the display reading 0000, I put the leads on the motherboard's two prongs where the black and white wires from the LED driver attach to it.
The reading is 121.
I switch the multimeter to DC mode (---), and test again, and the reading is 0000.
If I understand correctly, the LED driver should be one with full AC line input and of the "constant current" variety. But how to determine the output requirements for the driver?
There are two (2) LED lights, each with this spec:
Max power: 1.5W and Input: <= 12V, Frequency: 50-60Hz.
Would a driver with the following specs be sufficient to run those two LED lights?
Input Voltage (VAC) 100 ~ 204VAC Input Frequency (Hz) 50/60 Hz Output Voltage (VDC) 4 ~ 12 VDC Output Current (Constant) 350mA Output Power (W) 1 ~ 3 W