Lighting design "+ -"

It's my lighting design task last year.

I designed a series of lamps which do not have the switch. And for some of these concepts have already been existed (one even been produced ) , I choose this one for further designing.

As you see it doesn't have a switch. To turn it on, just rotate it 90 degrees.

I found it hard  to turn the concept into reality !!! :(

Yep! Make "impossible"  possible is the attraction of product design :D

Finally i spent 3 days making a simple plastic prototype before the deadline.

It looks simple and poor.....but it works.

Here is a demo video of the  prototype.

And there are some pic of the making process.

You can see the LEDs were taking from a flashlight :>