Deck lighting for 4x4 vinyl posts, Super Bright, easy to install require no power source. These are the best in the industry, easy to install , 5 year warranty . Our lights are made of cast aluminum , have two white L.E.D. Bright Bulbs two NiCad Batteries Included. By adding some lighting to your home, boat dock or patio will make it safe and secure. Solar Warranty information click here.