Easy to install into Add Lights to a Walkway, Patio, Driveway or Pool Deck! Create a safe, well-lit pathway or accent with these lights. Kerr Paver & Cobble lights are rated for vehicle traffic and can handle the load bearing of a car parked on top of the lens. They can even handle light to medium duty truck traffic. NOTE: These are NOT SOLAR! Requires 12-volt Transformer to power lights. We also sell complete kits on Amazon that include lights, low-voltage cable, connectors, a transformer with a photocell/timer to power the system, and instructions on how to install. Perfect DIY project for a homeowner or contractor. TJB-INC is the oldest continuous brick and mortar dealer/installer of Kerr lighting in North America. We started selling and installing them back in 1995 right after John Kerr invented the paver light. Our construction division has installed 10,000+ of Kerr lighting fixtures throughout Connecticut (where we are located). We have the experience to correctly answer any question or problem that our customers may have regarding the installation, repair, or replacement of any Kerr lighting product. If you are local to Connecticut, we have outdoor display gardens & ponds that are open 24/7/365. There we have Kerr lighting fixtures built into our walkways, patios, driveway, and retaining wall displays so customers can see how the lights look in real world applications. TJB-INC stocks all replacement parts for the entire Kerr Lighting line of products if ever needed. They are all available on our TJB-INC Amazon Store. 4" x 3" DECK & DOCK LIGHTS Actual size = 4¾" x 3 ¾" x 2" thick The Deck and Dock Lights are an exciting breakthrough in exterior illumination. They will give your wooden or Trex deck and dock areas the necessary directional lighting, as well as an attractive, sophisticated appearance. These lights not only enhance the look of your property, but also provide you with additional security and when used in appropriate areas, they can enhance the safety of your loved ones and guests. The 3" x 4" Deck and Dock Light is designed for easy installation into wood or trex decking. A small notch is cut out of adjoining deck boards, and then the light is inserted and locked in place with hold-tight tabs. The wide lip supports the light and its smooth, rounded corners make the Deck and Dock Light a safe, yet elegant addition to your outdoor living area. Can be used on all types of decking and different thickness of material These lights can also be used inside if installed in a non-load bearing application. (Don't put a chair leg on the lens and then stand on the chair) Add-on lights are also available on our TJB-INC Store (additional cable may be necessary depending on number and spacing of lights). Tools Required: Jig Saw, Pliers, Utility Knife, & Regular Screwdriver. The Deck and Dock Lights can be used in wet areas like docks, porches, wood stairs, & decks as well as dry applications. Use them to highlight borders and add safety to a dark area. The clear bulbs can be easily changed out and replaced with colored bulbs like red, yellow, or green (all available separately) for special or seasonal effects. (Bulbs available at Home Depot or Lowes) The fixtures come with a 2 year manufacturer warranty. Easy DIY Installation Instructions are included with each order. Replacement parts are always available & in-stock (if ever needed)