Inspired by the raw beauty of volcanic basalt, this pendant includes a bulb of translucent mouth-blown borosilicate glass with an irregular hexagonal shape. Topping the bulb is a brass cap that features a rough-hewn sand-cast texture on its six sides. Because the 5-watt LED bulb has an equivalent incandescent power of 25W, it can reduce energy usage by up to 90%. Hardwired.