Guardian Industries and View (formerly Soladigm) have introduced SunGuard EC, a dynamic architectural glass product that helps control heat and glare inside a building using electrochromic technology. The glazing transitions from clear to tinted in response to either manual or automated controls. In its fully tinted state, the glass has a visible transmittance (VT) of 0.03 and a solar heat gain coefficient (SHGC) of 0.09. In its clear state, the glass has a VT of 0.58 and an SHGC of 0.46. The tint level can be adjusted to one of four settings.