Twiggy D1 features a direct 1" lambertian white diffuser lens that provides uniform light without hotspots. At 7 watts per foot, the 12 Volt AC fixture contains very warm white 92+CRI LEDs for excellent color rendering. The Twiggy D1 is available in 12 inch increments up to 72 inches. May be ordered in 3, 6 or 9 inch increments.ixture uses a 12 VAC Class 2 electronic low voltage LED transformer (included). Transformer fits inside a standard square 4" electrical box with round plaster ring and flat canopy. Dimmable with an electronic low voltage dimmer.