btfarm 8 Pack Solar Post Caps Lights sells on Amazon. I think the price is very good. Please read some of the reviews and see people thought of the product.**If you’re not sure whether to buy, add to cart, and you can come back to it later!**

2 Lighting Modes: btfarm 4×4 solar post caps lights feature 2 lighting modes that emit 15-30 lumens of warm white light; slide the switch below the solar panel to select the mode. Medium mode emits 15 lumens of warm white light and lasts over 12 hours on a full charge; high mode emits 30 lumens of warm white light and lasts over 10 hours on a full charge

Quick and Easy DIY Installation: Solar post lights comes with 4 different sizes of removable base and post mounting kits, suitable for mounting on 4×4, 6×6 (actually 3.5×3.5, 5.5×5.5) inch wood posts, or 4×4, 5×5 vinyl or plastic post caps. Lamp post lights outdoor require no wires and are quick to install, simply mount the solar base plate to the highest point of the railing in a well-lit outdoor area and screw into the base plate