SE Wireless Motion Sensor Light (10 LED) for $6.43. Shipping is free on orders over $25. If needed, use this Filler Tool to pad the order to qualify for free shipping. Here is a screenshot for your reference. It features infrared technology to senses both movement and heat, 10 LED pure white light that last for up to 100,000 hours, and wire-free installation. Most places have it for about $12.