12V with Variable Lumen Output ( VLO ) that allows you to easily switch between three lumen outputs (400, 600, 835 lumens) without mechanically adjusting the settings on the fixture. The adjustable lumen large accent 15 degree, 3000K spot light in textured black is an integrated, fully sealed LED fixture that features 6,000 volt surge protection. Featuring custom optics that assures no halos or scallops to deliver superb center-to-edge uniformity for clean, clear light.