Kozlowski's concept was to use a combination of four colored light bulbs per "light" which allowed a full spectrum of colors. The Young Electric Sign Company assisted in creating the test panels and in the final installation. After the Fremont Street Experience opened, the light bulbs were checked nightly to ensure that all were functioning properly. To accomplish this massive undertaking, the length of the canopy was divided into panels. Each panel was checked by separately turning on each of the four colored light bulbs. A maintenance worker on a lift would then replace any bulbs that were out. The most expensive bulb cost nearly $15 to replace.