I'd never seen this product until today, but it seems like a great idea at a very reasonable price, if you can get it in-store or order multiples (see below) to get free shipping.
I would describe it as a light fixture with built-in LED "bulbs", but it can also be used to convert bare-bulb fixtures (like those often seen in garages/basements) into nicer-looking fixtures. If you don't have a fixture in place, it comes with all hardware necessary for a new-construction installation. Check out some of the HD customer reviews with attached pictures - I found these to be very helpful. Fixtures (sans bulb) of this style are usually close to $10, so the fact that this comes with LED illumination for that price surprised me.
This showed $9.98 for me whether I selected store pickup or shipping. This price appears to be consistent at least across much of NY state, but stores in a few other states I checked show $19.96.
NOTE: to get the $9.98 price outside of NY, you need to order 5 (or pad your order to $45 with other ship-able items), and set your store to zip 14207 (store #1234, which I thought was cool). I went most of the way through the checkout process with an out-of-state shipping address, and it appeared to keep the $9.98 price. Please report back if this works for you! If you do order 5 of these, pad your order up over $50 (this Sharpie is $0.97) to take advantage of the current $5 off $50 coupon.
Not sure why the term "fluorescent" is in the product description - the illuminators are clearly LEDs.
HD seems to be the only retailer, so I couldn't figure out how to compare prices, other than the reported markdown from $24.96 on HD's page.
Commercial Electric 1-Light 7 in. White LED Fluorescent Easy Light
Eyes to use for offsetting the pull chain string on some porelain fixtures are $1.18 online #6 x 1-15/16 in. Zinc-Plated Steel Screw Eye (3-Pieces) Model # 14091 Store SKU # 210090 Internet/Catalog SKU 202704392