How to make a circuit with led, batteries or battery.

3 Simple Ways to Light an Led Bulb with a Battery - wikiHow

How to Connect Multiple LED's in Parallel with 9V Battery & Switch

Lemon Battery Experiment

Joule thief Circuit, I don't know how it works, but I heard that it could make batteries last longer by taking those joules out of battery or capacitor which didn't use well

Simple Basic LED Circuit (How to Use LEDs) : 4 Steps - Instructables

Batteries and LEDs

Easy LED Circuit

Pololu - Simple LED circuit

Making Fruit Batteries Which One Works Best? - News about Energy Storage, Batteries, Climate Change and the Environment

Powering LED Strip Lights with Battery - Myledy

Button Batteries/ Coin Cells and Simple Circuits

How many lemons does it take to light a bulb?

Build A Simple Electric Circuit

High power LED flashlight circuit with 1.5V AA battery

Simple battery-status indicator uses two LEDs

GUIRNALDA 100 LEDS MULTICOLOR A PILAS

Luces LED alambre a pilas AA - MULTICOLOR x 5mts

Luces De Hadas Pilas Botón Reloj Rojo Micro Led Alambre Tira 2 Metros

Guirnalda microluces led a pilas - Electricidad Gómez

Cable Hilo Alambre Luz Led Cálida Blanco 3mts A Pilas