Review on Upgrade Your Kitchen With High-Quality HARRRRD Hardwired LED Under Cabinet Task Lighting - Dimmable, 16W, CRI>90, 4000K Cool White, Wide Body, Long-Lasting Metal Base With Frost Lens by Alejandro Dabney

The 90+ CRI of these lights is great for making food look natural. They're pretty powerful; I used 8W sticks for a couple of 2' wide counters, and 14W sticks for 4' wide counters, and that was borderline too much light. I figure if you use 3W per foot to reckon the wattage that will be about right.I'm an experienced DIYer but not an electrician so don't take this as gospel, but I've found an easy way to install these lights is with metallic cable (MC cable,) that's readily available from any hardware store. Take the MC cable back to a surface mount junction box, put in some screw-in metal straps to hold it (see photo) and connect it to whatever electrical wires you have. Bear in mind the MC cable can't turn tight corners.These lights have enough space inside (just.) for wire nuts, but a good tip is to stagger them, i.e., cut each of the three wires to a slightly different length (different by at least an inch) so that the wire nuts aren't all clustered together inside the fixture. That makes it easier to get the cover back on.Oh, and the instructions don't tell you how to knock out the metal circles to get the wires in. Just take a flat-blade screwdriver and a hammer, and tap at the edge of the circle enough to create a small opening, then use pliers to grab the edge of the circle, and twist it back and forth a few times until the retaining tab breaks off.