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Mixed
Outline
bitsies!
lamp, Idea, electricity
Black
512x512
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Mobile apps
Handdrawn
Web - Watercolour
light, Idea, lamp
PNG SVG MORE
Glyph
Social Messaging & Productivity Mix Icons
light, Idea, bulb
506x512
Social media
Flat
Social Network Round Gloss Shine
Kickstarter, Campaigns, Idea
OliveDrab
Social Messaging & Productivity
light, Idea, Flash
UI
ikooni outline: Free Basic
creative, media, Idea
Business & finance
Business and Finance
Idea, brainstorming, imagination
CadetBlue
Business, light, Idea
Higher Education Icon Set
bulb, brainstorming, lightbulb
SteelBlue
256x256
Very Basic. Android L (Lollipop)
electricity, Light bulb, Idea
Logotypes
Kickstarter, Crowdfunding, ideas
Icons Solid
Idea
Education & science
Hand drawn Academic
Energy, light, power
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Avatars & smileys
Cartoon
Very Emotional Emoji
Emoticon, smiley face, eurica
DarkSlateGray
64x64
Internet and web
bulb, Energy, web
Pixel
8-Bit
electricity, charge, Bit
Computer & hardware
Line icons for UI & more
crowdfounding, Genius, lamp
app types in grey
help, Heart, light
PNG MORE
Windows 8 metro style
26x26
Jolly Icons Free – 36 Hand-Drawn UI Icons
hand-drawn, weather, hand drawn
Shopping & e-commerce
Flat services icons
bulb, Idea
SlateBlue
Signs & symbols
Smooth
Two Tone Design Set
power, Electric, Bullb
Tomato
128x128
WPZOOM Developer Icon Set
Idea, bulb, light
Linecons Free – Vector Icons Pack