PNG ICO MORE
Shopping & e-commerce
Smooth
Super Mono Reflection
light, bulb, Blue
Black
64x64
light, green, bulb
red, light, bulb
bulb, yellow, light
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Signs & symbols
Super Mono Basic
Blue, bulb, Basic
DeepSkyBlue
48x48
Desktop apps
Farm-fresh
Circle, green, light
OliveDrab
32x32
PNG MORE
Business & finance
Glyph
Black ToolBar Icons
Idea, lamp, light
40x40
Mixed
Retina Display Icons
Idea, on, bulb
Silver
light, bulb, off
3D
Vector icon set
Idea, light, lightbulb
DarkGray
126x126
16x16 Free Toolbar Icons
help, off, on
16x16
lamp, light, question
Burn, Flame, fire
Pixel
IconSweets 2
cup, Champion, trophy
light, Idea, Buld
Traffic, light, signal
Idea, Buld, Black & white
gcons
light
DimGray
Computer & hardware
WooCons #1
on, bulb, hint
Gold
Isloo
bulb, light
Khaki
128x128
Social media
Cartoon
Massive Twitter icon set
twitter, bulb, light
256x256
bulb, light, twitter
NOD 2
Folder, light
DarkSlateGray
512x512