Waterproof LED for many different application. Can be use for storefront, walk in cooler, under cabinet, light boxes , cars Signs etc. This package includes 40pcs T5630 module, 7pcs 39inches track and UL Listed 12v 3A power supply. it has back self stick tape for easy installation. Please note: All module will be per-soldered and link together for your convenience. You can add additional LED to increase brightness and length of your needs. Wire can be cut for use in specific needs. it operate at 12v DC.