avatar
battery
bolt
business
button
cable
concept
connection
construction
electric
electrical
electrician
electricity
energy
engineer
equipment
human
icon
illustration
industrial
industry
isolated
light
lightning
male
occupation
person
plug
power
professional
reflection
repairman
service
shadow
single
square
station
stencil
supply
symbol
technician
technology
tool
voltage
wire
work
worker