LED and Lamps

In this post for How to Illuminate 18 LEDs from a 3.7V Battery we need to power 18 LEDs with 3.7V battery like a small light party! To light all LEDs well we need smart plan. We have to make small LED groups and connect in clever way. Use series in line and parallel in […]

Imagine we have a strong water hose of 12V, but plant need soft sprinkle with 3.3V to 3.5V. Buck Converter Circuit for 1 Watt LED Driver is like adapter for hose. It makes pressure low and is good for plant. It also control water flow like current, so plant do not get too much of […]

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 […]