Blackouts lose some of their gloom and inconvenience if objects are coated with luminous paint that becomes visible in the dark in the presence of “black light.” The black light, consisting of ultraviolet rays, is invisible to the eye, but has properties that cause certain chemicals to glow. If black-light lamps are used indoors and outdoors in cities during blackouts, according to experts of the Westinghouse Lamp Division, it would be possible to apply the special paint to $mall objects such as hats, gloves, purses and canes, thus making them easily seen at short range. This would help avoid collisions on the street without supplying enough light to aid enemy air raiders. Painting objects in the home would serve as a guide in getting around while the lights are out.