SE FL8403-10-3 Wireless LED Motion Sensor Light (3-Pack) for $18.22. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for your reference. It uses Infrared technology senses both movement and heat for fewer false activation, measures 3″ x 3″, operates on 3 AA batteries (not included), and can be used either indoor or outdoor.