Larger clusters of crystals, ranging from a foot wide and twice that tall, to three times that size could be used to light entire rooms. Being surrounded by transparent conings of various colours the green light produced by the crystals could be altered into other colours, a mild white-yellow being the most common. If connected to two electric diodes the crystals could produce small amounts of power, not enough to power heavy electronics, but one crystal that could light and heat an entire room, connected to a diode could easily power a small homes normal electric based lighting for three to four months.