These are not cheapest because they made to UL strict specifications with high quality, high lumen Epistar (not cheapest as most other) LEDs They emit at least 80% more light with color temperature similar to Sunlight and excellent color rendering index exceeding 90! This listing is for a 16 feet 5 inch long LED light strip with 300 SMD LEDs (3528) with 120 degree light dispersion angle. Strip contain 300 Bright white LEDs consuming only 20 watt (12 volt 1.65 amp DC) Light output is 1600 lumen - more than of 2x65 watt incandescent light bulb! Color temperature and light output: Day light white 5000K, 1600 lumen, (similar to refrigerator LED light - no blue tint like others so-called "white LED's, please scroll down to see color comparison picture) This sale is for a 16.4 ft long flex strip with 300 LEDs with 120 light dispersion angle SMD 3528). Special order high color rendering epistar LEDs, color temperature 5000K - no blue tint as early LEDs or so-called "white" (bluish white sold elsewhere, see pictures below). Entire 16.4ft strip consume only 24 watt (12 volt 2 amp DC) while emitting light equal to 100 watt incandescent light bulb! These strips are made as flexible printed copper circuit board less than 3/8" wide and only 1/8" thick with self adhesive 3M back. Extremely easy to install. Photo below shows an example of kitchen installation - Warm white strip was cut in 3 parts, 3 holes of 1/4" were drilled, connecting wires and power supply are hidden in cabinets. Less then one strip (about 12 ft of Warm white strip) is used in this installation. Strip can be cut every 1 -7/8" (3 LEDs), each part can be soldered and powered by the same or additional 12 volt power supply. LEDs spaced less than 5/8" apart, 19 LEDs per ft. These strips are perfect for kitchen under cabinet lighting, glass door cabinet lighting, accent, picture and decorative lighting, produce warm white light! The light output is equal to 5 x 30 watt halogen bulbs. Please do not confuse with low power rope lights: these are very bright LEDs and shipped with 12 volt 2a regulated UL listed power supply. Strip shipped with Black (-) and Red (+) wire leads, UL listed power supply and female jack connector . Please seller, if you should have any questions. The expected life span is more than 50,000 hours.