The landscape lighting kit is a Malibu brand LED kit I bought from the orange big box store (you know which one.) The LED in the spotlights are Cree XP-Gs, not sure what's in the path lights, but the entire kit has a nice warm white that matches the warm white Cree XR-Es I have as eave lights on the house.
I wasn't sure if mentioning vendors was okay or not. The kit I purchased is all metal construction. I am also in the process of converting some old incandescent fixtures to Cree LED, however I purchased this kit anyways because it was inexpensive, came with 50' of wire, a nice 45W transformer with photoeye and timer (which is all the power I need for running LED stuff), as well as six nice fixtures for a reasonable price.
I wanted to bump this thread and update some information I posted above. I had some issues with the Malibu LED landscape light set I bought. Within a very short time I went through three of the spotlights, they kept filling with water and shorting out due to sloppy fixture craftsmanship. The big orange box store reimbursed me for that portion of the kit and I bought a single $50 Malibu LED spotlight to replace the two $25 ones that failed. The $50 spotlight had the same fate. I was able to get my money back to buy something else. The Malibu transformer and the four path lights are still working, so I still have those.
I replaced the Malibu spot lights (at the base of the trees to illuminate the trunk) with some nice 3-LED bronze fixtures:
and added a bronze well light on two sides of the tree to illuminate the canopy.
I am pretty much done with the frontyard lighting. Between the DIY eave lights and the landscape lighting, Cessna's are going to start mistaking me for the airport if I add anything more, so my focus goes to the backyard now. I have some old incandescent fixtures I plan to convert to Cree LED and I will buy a couple more of the nice bronze spotlights to use on the backyard trees.