(A) Signs in Residential Districts may be illuminated with not more than 200 watts of non-flashing white light. Such lights must be shielded so that they illuminate only the surface of the sign.
(B) No sign shall have blinking, flashing, rotating or fluttering illumination.
(C) No sign shall be illuminated in a manner which changes light intensity, brightness or color.
(D) No sign shall have colored lights which may be confused with or construed as traffic-control devices or emergency vehicles.
(E) No sign shall be illuminated in such manner that the direct or reflected light from the sign creates a traffic hazard for motor vehicle operators on public thoroughfares.
(F) Electronic message boards: a sign or portion thereof that is an electronic message board shall not be greater than 24 square feet in area and shall comply with the following regulations.
(1) If signs are determined to be a nuisance or traffic hazard, the maximum brightness for the sign shall be reduced so not to exceed an illumination of 5,000 nits (candelas per square meter) during daylight hours or 1,000 nits (candelas per square meter) during the period from sunset to sunrise, as measured from a sign face at maximum brightness.
(2) Each electronic message board shall have a dimmer control to produce a distinct illumination change from a higher illumination level to a lower one for the period of time from sunset to sunrise. Each sign must appropriately adjust display brightness to conform with applicable brightness specifications as ambient light levels change at each such sign location due to sunrise, sunset, prevailing weather conditions or otherwise.
(3) No additional electronic message board is permitted on the building if it is visible from a public road.
(Prior Code, § 15.503) (Ord. eff. 12-1-2019)