Uses this type of connector at work and at home. The metal on them where you crimp the wire is a lot thinner than most brands I use. So I'm not sure how long they will hold the crimping tension on the wire. I liked that the insulating cap on the yellow has a flap at the top that opens and allows you to slide the cap over the wire. The only thing is, if the insulation on the wire is thick, it won't let the cap slip over the wire. This is fine for light connections, but if you're pushing a lot of bulbs through I'd try to get a heavier plug.