This set contains 50 images as shown on preview pages, wich includes 25 color images and 25 black line versions. Images saved at 300 dpi in png files.Check out these related clipart sets:Light - ScienceReflection, Refraction and Absorption.Magnifying GlassesTransparent, Translucent, OpaqueFlashlight Turned On/OffDesk Lamp Turned On/OffLight (Radiant Energy)I also have quite a complete selection of physics clipart in the following bundle:Forms of Energy Mega Bundle.☆ Click to follow me to get fre