Spirals 4 and 5

These 2 LED lamps are similar but not exactly the same. I printed both with the same transparent yellow PLA filament. Notice that one of them (spirals4.stl) has the diamond spirals not reaching quite to the top of the lamp. This is because the inner surface is a few mm away from the outer diamonds. I designed it this way because I thought the diamonds would be more prominent if they didn't pick up light directly from the LED light at the lamp's bottom.

After I printed and tested spirals4 it w