I used these lights along with the 100w Havit DC transformer and IP68 2-way writing enclosures to replace some old AC halogen lights in our courtyard. Build quality is great, and the two-piece screw-in spike makes it very handy for crowded garden beds (like for rising above spider plants). While the included bulb has three colour temp settings, it is noticeably less bright on the warmest white. Bear in mind this bulb has a frosted cover, so no sharp/architectural cut lines on lighting. Thankfully this is easily replaceable in future. Also I’m not sure why the 1421T is a separate (and dearer) listing, as that’s exactly what we received.

These spike lights are great quality and very reasonably priced. Having the extendable spike is good to adjust for where you are putting them eg you can make them taller to poke out through dense bunching plants like agapanthus or clivias. Perfect for highlighting palm trees and then I used bollard spikes (Havit Highlite LED Garden Spike Light TRI Colour 5w) for lighting along paths and sitting areas. Made my backyard look like a beautiful resort!