【實用工具app】Flashlight Color LED|最夯免費app-綠色工廠好玩App

here are plenty of Flashlight Color LED on the market today - models that you shake, crank, twist, click, and more. If none of these Flashlight Color LED tickle your fancy or you don't want to pay lots of money for unneeded bells and whistles, you can make your own flashlight from a toilet paper tube and other basic supplies you can find in your home.

Clear an area to work in and invite the kids to come watch you manipulate electricity with your bare hands. You'll need:

An empty toilet paper roll (or lightweight cardboard rolled into a small tube.

2 D batteries

Tape (electrical tape works well)

5" (12.5 cm) long piece of wire (if you're using a speaker wire, use the copper kind)

2.2 volt light bulb (different bulbs are an option, but it may or may not work as well. A bulb from a string of Christmas lights works quite effectively.

The idea of a "personal Flashlight Color LED might sound odd, but when you consider the needs of folks who travel, the increasing number of blackouts, tornadoes, hurricanes, and other natural disasters, it becomes clear that one could be handy.

Turn your phone into a color Flashlight Color LED police light, Modern Flashlight Color LED and power cells are so small and efficient that there's really no reason not to have a personal lighting appliance available to you at any time.