Lumar is an item added by RedPower that serves as the prime ingredient in crafting Lamps. It can be crafted using every Dye for a large range of Lamp colors. For example; the blue lumar can be crafted using either Lapis Lazuli or Indigo Dye. Noting that Indigo Dye is easier to obtain and much more EMC-friendly. There are 16 different colour options. These are White, Orange, Magenta, Light Blue, Yellow, Lime, Pink, Gray, Light Gray, Cyan, Purple, Blue, Brown, Green, Red and Black. Don't forget: The colour of the lumar only affects the colour of the lamp, not the light it displays, so really lamps are only used for decoration.
Note: You must use Lime Lumar in order for the recipe to work.