Got an LED stickon light for the bathroom of "Bob", our 2100. Totally impressed for a AAA battery light. Fits just above the door shining it towards the bathroom. Another nice feature is the strip that holds it up. One side adhesive for the wall and the other magnetic to hold the unit. Thusly it can be easily removed to replace batteries when needed and then retored to the same position.
Amazon sells these (of course) Kuled 10-led Wireless Motion Sensing Stick-on Anywhere Step LED Light Bar with Magnetic Strip.
My dear brother gave it to me. He told me that he had one, in fact two and really liked it and thought we could use it in Bob. He didn't tell me that he wanted two and they came in three packs and didn't know what to do with the other one. Still a nice thought and a great solution for us.