LED and Lamps

Simple 1.5V White LED Driver Circuit is like power translator. It takes power from battery and changes it to right voltage and current for LED. This helps LED shine bright and safe. Without driver LED may be dim or may burn. Circuit Working: Parts List: Category Description Quantity Resistors 33k, 470Ω (1/4 watt each) 1 […]

This Simple 1.5V White LED Flasher Circuit uses few parts to make white LED blink ON and OFF again and again. It is an easy project and is good for beginners. Fun to play with blinking light with no need with hard design. Circuit Working: Parts List: Category Description Quantity Resistors 2.7k, 330Ω, 47Ω (1/4 […]

Think of flashing lights in a line but with LEDs and not with bulbs! This LED Chaser Circuit using Transistors makes LEDs light up one by one like running. It uses small switches called transistors to control LEDs. This circuit is good for beginners and is fun way to learn how transistors work! Circuit Working: […]

CFL bulb need special helper circuit to turn ON and glow bright. This Simple CFL Driver Circuit change home electricity into power CFL can use. CFL bulb uses little mercury vapor to make invisible light. Then it hits special powder to make light we see. Circuit Working: Parts List: Category Item Quantity Resistors (All resistors […]

This small circuit for 3V LED Driver using IC LT1937 helps to power LED. It takes big battery power and make it 3V for LED. Chip LT1937 does good job by keeping power steady. LED gets enough power to shine bright all time. Block Diagram: Look at the block diagram to understand how circuit works. […]

Just think like water pipe filling bucket. Normal circuit is like set water pressure voltage and hope the bucket fills good. But with LED this Simple LED Constant Current Circuit is like smart nozzle. It keep water flow current same even if pressure changes a little. This way LED light up nice and live longer. […]