the user can get this for 15 bucks on ebay

• when putting the light switch to on and covering the photo sensor in the user’s palm-fist-hand
  • the light should turn on… (night simulation)
• when the user opens the hand (in daylight)
  • the light should turn off…

hurra! congratz!

short celebration dance of success! 🙂 (e.g. with wellerman on youtube)