Curb feelers optional. The wht.wal (read: white wall) creates a luminous doughnut of light. • 21 standard powder coat finishes or Brushed Aluminum • Spun aluminum housing • Gloss white acrylic diffuser • Metal core linear LED boards in two lumen packages • Three Kelvin temperatures (3000K, 3500K, 4000K) • Wired for 0-10v dimming at no extra charge