Electricity pictures:

https://www.sevacall.com/blog/2013/06/s/electricians/how-to-save-energy-with-home-improvements-electricity/

http://sms.desotocountyschools.org/?PageName=TeacherPage&Page=6&StaffID=190615&Archive=yes

http://www.extremetech.com/extreme/130024-electroslave

http://naturescreationsinc.com/alternative-systems/led-lighting/

http://www.arduino-hacks.com/create-arduino-3x3-led-cube-30-minutes/

http://www.treehugger.com/interior-design/new-cold-cathode-fluorescents-85-less-mercury.html

http://news.thomasnet.com/fullstory/Compact-Fluorescent-Lamps-suit-industrial-applications-532676

http://www.redefiningfederalism.org/lovable-incandescent-light-bulb-fire-incandescent-light-bulb-ban-in-the-united-states/

http://www.ecofriend.com/simple-ways-recycle-incandescent-light-bulbs.html

http://en.wikipedia.org/wiki/Lightning_strike

http://naruto.wikia.com/wiki/Lightning_Cutter:_Double_Lightning_Quake