... . IP67 12V30W Waterproof LED Module Power Supplya.12V30W Waterproof LED module power supply, constant voltage.b. Epoxy encapsulated, IP67. Suitable for outdoor lighting application.c ... . Aluminum housing, good for heat dissipatione. Cooling by free air convection.f. Application: LED display, LED sign, LED channel letter, LED underwater light, LED outdoor decorative lighting ...