An elongated perimeter light is disclosed, which comprises a linear array of light sources (LEDs) that are electrically illuminated. The array of light sources is disposed within an elongated transparent tube, with the tube transmitting and dispersing the light from the array giving the appearance that said array of light sources is a continuous light source. The array of light sources is capable of being cut at intervals down its length to shorten it. The light sources that remain in the array continue to emit light and the tube can be cut to match the length of said array. The present invention also discloses systems for lighting structural features, with one system according to the present invention comprising a plurality of elongated perimeter lights. The perimeter lights are electrically coupled in a daisy chain with the electrical power at each of the perimeter lights being transmitted to the successive light. A mechanism is included for anchoring the plurality of perimeter lights to a structure to illuminate it. Each of the perimeter lights can be cut at intervals down its length while not interfering with its ability to transmit its electrical power to successive lights.