1. Do purple LEDs mix blue and red, or do they emit true violet?
  2. Flashing LED circuit using Flyback Topology Flickering Problems
  3. Arduino LED flashes with one button press

  4. Powering 12V LEDs in buttons via USB

  5. Controlling multiple LEDs down to 0.25mA
  6. choosing resistors for LEDs
  7. WS2812B - flickering and artifacts
  8. Voltage divider/reduction with no current draw

  9. Connecting 12v Parallel LED Series to Arduino

  10. AC constant current (6 A rms) to 12 V DC
  11. Why exactly can't a single resistor be used for many parallel LEDs?

  12. Automatic charging a capacitor to an adjustable voltage level, for impulse LED driving

  13. Why does one LED flicker and go out?

  14. Power supply for 144 LEDs in parallel?

  15. Single resistor powering multiple LEDs in parallel where current through resistor is lower than max allowed current for an individual LED

  16. How to toggle LED with button on dsPIC33 and dsPICDEM MCLV-2 devboard

  17. Automotive LED retrofit causing strange phenomenon
  18. Charge battery through the transistor

  19. Wiring up a dolls house with LEDs and a 9V battery

  20. Have I bought the right hardware?

  21. How to reduce noise? (FlipFlop circuit creates lot of noise)
  22. PWM dimmed led floor lamp: can it cause eye strain?
  23. Alternating polarity on Christmas LED lights

  24. Battery indicator connected with bicolor led
  25. specs for LED driver to power 18 x XML T6
  26. Can I round-robbin high power LEDs to minimize driver channel requirements?
  27. How to drive multiple LEDs with PWM and MOSFET
  28. What resistor to use with this RGB LED?
  29. Circuit changing the color of an led with a button?

  30. 1.2 led to be used with nokia charger

  31. LED voltage testing
  32. Connecting KY-009 to GPIO of Raspberry Pi

  33. What is the technical part name of conical indent LEDs?

  34. LED turning on when we charge a batterie
  35. ATmega328p driving RGB LED WS2801
  36. LED lamps and fluoro replacements
  37. Overcurrent Protection for COB Leds wired in parallel powered by Const Voltage Mean Well Driver

  38. Combine 2 outputs from a single powerbank to increase current for driving leds and controller

  39. How to efficiently power and arrange 100 multi chip LEDs in 6 different colors each color runnig off their own transistors

  40. Power Factor Correction Circuit (LED lighting)
  41. Need AC to DC LED dimmer

  42. Using capacitors for flashing lights

  43. What destroys a LED in the reverse direction?
  44. 60V 200mA LED strip powered with step up converter

  45. Wiring a bunch of micro LED fairy lights to a single power source in parallel
  46. Help with designing an LED circuit

  47. Arduino controlling an LED

  48. LED modulated @ high voltage -vs- constant @ low voltage

  49. How to make LED flash once every 5 seconds using using 555 timer?

  50. Check my first PCB design for errors (simple high power LED circuit)

  51. What resistor should I use when wiring 10 LEDs in series?
  52. Why doesn't my potentiometer alter LED light intensity?

  53. Driving an LED from an 1.8V GPIO pin that defaults to "IN"
  54. LED restricted minimum current (do not use below 10mA)

  55. GPIO and clock configuration of STM32F427VG
  56. How to reduce the number of pins for three 7 led segment?
  57. Power supply to led string
  58. Using MOSFET with Open Drain Controller
  59. PWM on phototransistor

  60. prgramming arduino led on then off

  61. After adding a power switch onto a LED string of lights, some still light up very slightly when switched off
  62. Bi color led with tri-state pin (high->D1, tri-state->D2, low->off)

  63. Resistor Values to switch a 100ma led with a on a 5v power supply with 2n3094a 3.5v base

  64. Switching circuit for driving LED at different current values
  65. 3.6V Circuit and 2.8V LED
  66. Removing flickering of LED lighting

  67. How to Implement Float Switch On/Off LEDs

  68. pwm msp432 led blinking

  69. Calculating resistance when ohm law has no response
  70. How to replace a green LED with a red one in a simple transistor switch?
  71. Circuit with 10 LEDs with 9V battery
  72. LED Strip and digispark

  73. How to allow current over a certain voltage

  74. Arc welding near LEDs. is this a terrible idea?
  75. Can I connect various LED fixtures to one driver?
  76. I want to remove 3 LED's from a small circuit board. Need a bit of help
  77. LED circuit analysis with PHY DP83822HF
  78. Controlling two LEDs with one digital output
  79. Simple LED Blinking project - PIC16F877A microController problem

  80. Led Matrix Driving Method

  81. Do I really need resistors when controlling LEDs with Arduino?
  82. How do I shine an LED when a PIR detects movement but keep it shining until a reset button is pressed?

  83. With a 555 + 4017, how do I light 7 LEDs, then 6, then 5... then 1 then 0?

  84. wiring from car amplifier to leds syncing to bass
  85. Driving 3w leds in a car

  86. LED lamps keep glowing when dimmer is turned off

  87. Controlling PWM noise on power supply
  88. LEDs seem to automatically self-regulate to achieve ideal voltage across terminals
  89. Reversing polarity of a load with PWM

  90. Voltage Drop and LED Circuit

  91. Connecting mobile battery and LED bulbs to 10.5v Solar cell

  92. Unclear formula for LED resistor calculation
  93. led indication in a charger circuit

  94. Configuring an LED project

  95. Chaining up 5v LED strips using 5v cellphone chargers
  96. Amp draw of multiple chains of LEDs

  97. LED's connected to a relay remain on?
  98. How can I light up 3 LEDs in sequence but only one at a time?

  99. Can you use a LED driver (WS2801) for a 4-20mA control loop

  100. Powering 3.3v-5V LED strip with 18650 batteries