I bought LED spotlights at a bargain on Aliexpress to replace my kitchen cabinet's aged and broken halogen units. As the LED driver requires a minimum 4 lights to operate without load discharge, I decided to mount the "extras" for my stove, as the cooker hood's proprietary replacement fluorescent tube is almost impossible to find. The LED spotlight units are ~28mm wide, 26mm high. The "round" classic adapter fits the 50mm cabinet opening, the inside is secured by up to 4 screws. The two-axis units are in two parts. The WALL mount secures to a cabinet face wall with a screw, and 2xM3*8mm (or 6mm) screws to the main LED bracket. This assembly allows 360-degree rotation and about 30-degree tilt up/down. Position as you please!