13Deals offers Mr. Beams Wireless Motion Sensor LED Under Cabinet Light for $6.49 (reg $14.99) plus $1 shipping.

Product Description:
Instant Light for Important Tasks. Mr Beams Slim Task Light provides bright, battery-powered light nearly anywhere to instant convenience. Get motion-activated task lighting for kitchen counters, work benches, closets, utility rooms and shelves in less than 5 minutes. The wireless light, which is about the size of a smartphone, easily installs under cabinets and shelves.

35 lumens of bright light for under cabinets and shelves.

Wireless installation takes less than 5 minutes.

Get 1 year of light on each set of batteries with average use of 8-10 activation a day.
Features

35 lumens

Motion activated from 7 feet

20 or 60-second auto shut off

10 square feet light coverage

Battery powered (4 AA-cell batteries per light, not included)

Light sensor to prevent activation in daylight