1. It was supposed to last indefinitely, with lamp changes every few years.

2. For example, you can point your finger at a lamp and turn the dimmer up or down.

3. In fact, you can build a custom pendant lamp for well under $100.

4. You go to a store such as Walmart to buy a table lamp to brighten a dark corner in your home.

5. She compares the experience to a sighted person who closes her eyes and can still tell if a lamp is on.

6. In older versions, uses would have to pull down the notification tray from the top, as you would a lamp shade.