[TenTec] Grain of wheat lamps

[Jon Iza]

Folks,
when replacing incandescent lamps with LEDs, once you solve the problem of
the voltage/current by placing them in parallel or series, and using a
voltage dropping resistor when needed, there are two tricks worth knowing.
One of them is to use a file or sandpaper to scratch the outer surface.
Once is opaque, light will be difused and less focalized. Please see:
http://www.instructables.com/id/how-to-defuse-an-LED/
The second trick helps with "corner" lights when the LED fits in a hole but
you need the focus on the side. You may see the concept on this blog in
Chinese:
http://blog.sina.com.cn/s/blog_49a880380100vyql.html
Don't worry, the pictures are universal.
The method to get a glass-like finishing after using the saw or the file is
a cautious use of a propane torch:
store.curiousinventor.com/blog/clearing-cloudy-acrylic-edges-with-fire
It may be wise to practice first with low cost LEDs.
Kids, don't do that at home!
Hope it helps. Share and enjoy.
jon, ea2sn