NOTE: A Phillips screwdriver is required for assembly of this kit into a single navigation light at one of two user-selectable heights. Estimated assembly time: 5-10 minutes Battle tested on Boston Harbor and the Charles River, the Kayalite XT Dual Height Kit is a user-configurable, bright white, 360°, portable stern light for any watercraft classified by the U.S. Coast Guard as a "vessel under oars" including dinghy, kayak, sit-on-top, stand-up paddleboard, racing shell, canoe, rowboat and surfski. With this dual-height kit, a Kayalite XT can be assembled, based on user preference, to either 21 inches (53 cm) or 28 inches (71 cm). The 28-inch pole assembly of the Kayalite XT is designed for mounting on a flat surface, such as the top of a hatch or SOT crate cover, canoe bench or flat deck area. The 21-inch assembly of the Kayalite XT is designed for mounting on a substantially flat or slightly contoured surface. The Kayalite XT provides all the features of the original 18-inch Kayalite model, including Kayalu's patented "Secure-Attach" mounting system; impact-proof, deep water submersible construction (waterproof rated IPX8); diffusion lens developed in collaboration with Tektite Industries, Inc.; and 2-LED module. The Kayalite XT Dual Height Kit requires minor assembly. Marine-grade stainless steel bolts, nylon-insert locknuts, a custom-size wrench, and step-by-step assembly instructions are included. A Phillips screwdriver is required for assembly. Search All Departments for "Kayalu" to view our Kayalite kayak light and other Made in USA paddlesports products.No eyelet on deck? Look for our $9.95 Kayalu Gear Stainless Steel Eyebolt Kit or Kayalite/Eyebolt combo pack. Rugged and reliable, marine-grade components. Steel clip and nylon-coated bungee tensioning cable attach to any eyelet or pad eye on deck. Buoyant, deep water submersible (IPX8 rated), waterproof to 1000 feet (300 m). Bright white 2-LED module with white titanium-infused diffusion lens, 100+ hours on 3 AA alkaline batteries (included). High-performance portable navigation/stern light, for dinghy, kayak, sit-on-top, stand-up paddleboard, racing shell, canoe, rowboat and surfski.Lens Color: Clear. Auto Part Position: Right. Special Feature: Waterproof, Submersible. Light Source Type: LED. Brand: Kayalu. Date First Available: September 23, 2019. Best Sellers Rank: #255,866 in Sports & Outdoors. Customer Reviews: 4.7 out of 5 stars 17 ratings 4.7 out of 5 stars. : B07Y8T3FXY. Style: ?Modern. Part Number: ?KLT-1050-XT. Manufacturer: ?Kayalu. Material: ?stainless steel. Brand Name: ?Kayalu. Package Weight: ?0.43 Kilograms. Item Package Dimensions L x W x H: ?17.01 x 8.07 x 4.25 inches.