background
bar
board
cable
circuit
closeup
connection
connector
consumption
cord
current
danger
dirty
electric
electrician
electricity
energy
equipment
extension
extension cord
gray
green
line
long
modern
multi
multiple
nobody
object
old
outlet
plastic
plug
power
protection
protector
safety
saving
socket
strip
supply
surge
switch
technology
voltage
volts
white
wire