Great deal alert for lighting

Now I am putting myself out on a limb here to sound like I've been living in a cave but I bought a new to me product today. 

You may have been using them for years but I bought a package of four battery operated lights, with five LED lights inside with an optional feature in it, a sensor to turn the lights on when required.  I happen to be using them for under my kitchen cupboards for task lighting.  You can place them in a cupboard and it comes on when the cupboard door is opened.  Perhaps a closet.  All with no wires!!  They can either adhere with accompanying velcro or screw.  They are really good quality and they also came with the batteries!!  $14.99CAN !!!

From where do you ask?  Costco.  I know it is located everywhere so I recommend you keep an eye out for them while they are in.  You never know when you're gonna get a house that needs a little help with lighting. Although you would need to sell them to your client.  Still - inexpensive!