How do mains voltage LED filament bulbs work?
108075
How do filament LED bulbs work, looking very similar to incandescent bulbs?
51708
Why do LEDs not obey Ohm's law?
87842
Why am I getting 50V at a light when the switch is off?
120242
Mains Voltage on Strip Board
146825
Why am I getting strange results when using a power meter to measure CFLs?
117066
how does the circuit of a basic Variable speed electric drill work?
125392
Is LED properly implemented in the constant current circuit?
124910
Is a current-limiting resistor required for LEDs if the forward voltage and supply voltage are equal?
97680
What happens to the semiconductor in an LED when it is given voltage that it cannot handle?
122522
Interfacing switch and LED
152501
Why do we need resistors in led
35411
If blackbody radiation at 6000K peaks in the optical, why aren't fluorescent bulbs at 6000K?
14302
How does the current limiting resistor for an LED affect current and voltage drops?
12515
Class II isolated power supply (wall wart) -- referencing the output to mains neutral?
158851
How does ground mains work?
69776
Why is the diode forward voltage constant?
1069
Correct formula for LED current-limiting resistor?