LEDs for Beginners : 9 Steps (with Pictures) - Instructables
How to Make a Light out of Batteries (with Pictures) - wikiHow
Understanding LED Drivers by LEDSupply
Forward Voltage and KVL | All About LEDs | Adafruit Learning System
Easy LED Current Limiting Resistor Calculator In 3 Steps
LEDs for Beginners : 9 Steps (with Pictures) - Instructables
3 Simple Ways to Light an Led Bulb with a Battery - wikiHow
9v battery to parallel 3v LEDs - burnout - Electrical Engineering Stack Exchange
Create Your Own Battery Backup Power Supplies - Projects
Cell Phone Charger Using 1.5V Battery
How to Use a 3W Star LED – Kitronik Ltd
3 State Battery Charge Indicator Circuit
Simple battery-status indicator uses two LEDs - EDN
LEDs for Beginners : 9 Steps (with Pictures) - Instructables
LED circuit - Wikipedia
Basics: Picking Resistors for LEDs | Evil Mad Scientist Laboratories
How Does a 5mm LED Work? - LEDSupply Blog
Simple battery-status indicator uses two LEDs - EDN
LED VoltMeter Circuit
How Does a 5mm LED Work? - LEDSupply Blog
How to connect LED with 9v battery - Resistor, LED, 9v battery connection tutorial - YouTube
Which Resistor Should I Use with my LED? – Kitronik Ltd
Light-Emitting Diodes (LEDs) - learn.sparkfun.com
Forward Voltage and KVL | All About LEDs | Adafruit Learning System
