I have had some further thoughts about the design for the Midnight Clock and wanted to jot them down.

Functionality:

• Doesn’t turn on at a set time
• Turns on four hours after its “biphasic” button is pushed
• Could use two short strips of warm white LED stuck back to back which would allow it to be inserted into an existing lamp like the (decorative) salt lamp that I have
• Should have a second button that just turns it on and off so that it can also work as an ordinary lamp
• Should have a dial to adjust brightness in either mode
• The control box would sit in line between the AC power supply and the LED output
• The control box could be decorative – I am thinking early twentieth century art deco, phenolic resin radio style
  See: https://www.google.com.au/search?q=art+deco+radio&espv=2&biw=1280&bih=639&source=lnms&tbm=isch

All of this suggests an Arduino controller and I happen to have one kicking around!