1. Shape: cylinder, dome, concave cylinder, rectangular, and polygon. 2. Size: ?.8mm, ?mm, ?mm, ?mm, ?mm, ?0mm, 2*3*4, 2*5*7, 4.7*4.8 and so on. 3. Color: Red, yellow, blue, green, white. 4. Narrow angle, middle-wide angle and wide angle by your choice. 5. Customized shape, size, color, angle and intensity to cause to your project.