Series Description:The DH22U Series is our UL approved version of the DH Series. Currently only available in 22mm size, the DH22U is IP65 – vandal and splash resistant. Available in both momentary and latching with a flush ring illuminated actuator, the DH22U has body finish options of stainless steel or black anodized aluminum. LED voltage ranges from 6VDC to 220VAC. LED options are red, yellow, green, blue and white.