Kulka® IS-Series lampholders are the only lampholders designed specifically for Electronic Sign Ballasts. The IS-Series features an Integrated Shunt designed for Instant Start ballasts and are the only lampholders to feature Single Leadwire Technology for simplified installation and safer operation.
The 1547 and the 1548 series are virtually the same lampholder except that the 1547 Series has a lamp-center-to-panel distance of .39" greater than the 1548 Series. The 1547 Series may be ordered with vertical contacts. Suitable for outdoor use when properly installed.