40mm in size, the IP67 DH40 Series is both vandal and splash resistant. This miniature panel mount push button switch is heavy-duty and rugged in construction. The DH40 Series is available as momentary or latching in both SPST and DPST. Flush actuator style offer non-illuminated or bi-color ring illumination. Illumination color choices are red, yellow, green, blue, white and orange. LED voltage choices range from 6V to 220V.