The white finish 8 inch led cabinet light dimensions are 8.5 inches long by 3.75 inches wide and 15/16th of an inch tall. The fixture uses 9 watts of power, produces 254 lumens of light that is 3000K +/-250k of a warm white color temperature and the fixture is rated for 50,000 hours of use. Each led cabinet light fixture has rear knockouts that are 3/8 of an inch in diameter for easy hard wiring. If you do not want to hardwire these fixtures, you can purchase the 6 foot power plug for these fixtures and plug them into a standard electrical outlet. Each light comes with an end to end connectors or you can purchase jumper cables of various lengths to interconnect the lights. The led cabinet lights are fully dimmable and most standard dimmers can be used.