3M Scotchlok Moisture Guard Connector MSC, Weatherproof, UV-Resistant Connector for 2-3 Wires, 16-14 AWG (solid/stranded), Bag of 25, For Irrigation and Landscape Lighting Applications

Best product available for landscape light wiring. Does the job right the first time. It will take effort to snap closed (I used a rubber mallet and small board - not enough strength in my hands to squeeze and the tool made especially for these is too $$$). Note that no stripping is required! Plan to waste a few trying getting the hang of it and double check before you close them - not really made for reuse.

I tried 4 different connectors for landscape lights. What a nightmare the other ones were. These are FANTASTIC. Highly recommended. It almost makes adding connectors fun! They are worth every cent that they cost. TIP: The holes you push the wires through are VERY tight (which you WANT). What I did was cut the wires at an angle. It made it much easier to insert and the angled portion goes all the way to the end and isn't involved in the electrical connection that's made when crimping. I used 14 AWG stranded wire. I haven't tried 12 AWG wire yet.

This Connector works very well once I figured out how to use it. I noticed that other users also had difficulty in inserting the wires into the connector. After struggling with the same issue on the first few wires, I sharpened each wire like a pencil with a utility knife and insertion was very easy. Yes, you need Channel Lock Pliers to Crimp it down all the way and make good connections. I also agree the Waterproof Gel does ooze out and make a mess. But, that is confirmation that you crimped the wires !

I bought these for a low voltage landscape lighting installation. The main trunk line was #12/2 and the fixture wires were #16/2. I had no confidence in the supplied insulation piercing connectors attached to the end of the fixture pigtails [ from a home center starting with the letter L ] so I cut them off and used these. 3M has been making products like this for years for the telephone utility market, these are just bigger. The outer ports will accept up to #12 AWG wire, but if you're using low voltage landscape wire, you will need to open up the insert holes (grey cap on one end) to accept the larger insulation diameter. I used a center punch. The bottom side, which you can't see in this photo, is clear plastic so you can make sure the wires are fully inserted BEFORE you squeeze. Use a pair of Chanellocks to make sure the connector is fully closed. You will probably want to wear disposable gloves and have some paper towels nearby as the silicone gel filling will ooze out when you squeeze the connector. This gel is both an insulator and a water repellent. These connectors are rated for direct burial at voltage up to 150V.

This product is completely wrong with what gauges fit in it. The holes are way too small. None of my landscape wiring fit in these holes.

Bought these to rewire a goose neck trailer and am beyond disappointed. I got these because i could combine 3 wires and it be weather proof. I anticipated it cutting into the wire and holding with a clamp style feature but it does not. You clamp it down and it looks good but if there is any pressure pulling on the wire at all it pulls right out. The only thing gripping on the wire is the metal cutter that should connect all the wires to electrify them. I hope it will last the summer but will need to pull it in next winter and rewire it all again. Made more work than if I would have just spent the time to use heat shrink butt connectors.

Excellent product, for those having hard time to introduce the wires in the connector, use a mail or a pointy tool, then put it into the holes and use the silicone from inside to lubricate the introduction of the wires, I did it with out a problem.

Very subtle - these do not accommodate three 16 AWG wires as the ad title states, only two. Small detail, the outside two wire holes can take 16-14 AWG, but the center only takes 20-18 AWG. They are great waterproof connectors, but too much to pay if they can only take two of the larger wires.

Worked great for fixing some underground low voltage landscape wire for my lights Update! So I've used a few more of these and figured out a little trick, most of the led landscape lights have super thin wires, (22g or so) had a couple of tough ones to actually make the splice / connection inside, so what I do now is strip the lights wires and weave / twist in an additional striped 16-18g wire (just the ends obviously). Then feed BOTH wires into the centre hole and once I get in I cut the sacrificial 18g wire so that it ends just inside the connectors rubber seal. Makes a solid connection and had ZERO problems with them since!

Easy to use and great for landscape lighting connections

As promised nobody beats 3m

Once you figure these out, they are way better for outdoor use than marrettes and electrical tape. Be aware that you really have to stuff the wire into the end to get it into the connector -- better than it being loose! I was using larger gauge wire so I had to strip off the insulation to get it to fit.

It's good and convenient.