2. Single cell modules are created by cutting cells from a continous crystal
3. Polycrystalline are similar except that instead of being cut from a monocyrstalline structure they pour the the crystal matrix into a mold. this creates a square block that creates less waste of space and is actually less efficient in utilizing solar energy than single cells, but is greater per watt than single cell modules.
4. When the mold cools it creates random crystals that look pressed together and have different variations of blue.