Recessed Double Contacts (RDC)

IS-Series Lampholders
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.

530.1K-IS™ & 530.2K-IS™ Series Snap-In Lampholders for 800 and 1500mA Instant Start Lamps
Internally shunted for single wire electronic ballast applications
Rating: 660 Watts, dual rated 600V or 1000V.
Listing: UL File No. E-13408; CSA File No. LR95423. UL listed and CSA certified for outdoor use in enclosed signs and fixtures.

530.1K™ & 530.2K™ Series Snap-In Lampholders
Rating: 660 Watts, dual rated 600V or 1000V.
Listing: UL File No. E-13408; CSA File No. LR95423. UL listed and CSA certified for outdoor use in enclosed signs and fixtures.
Download Kulka Specs – 530.1K™ & 530.2K™ Series Snap-In Lampholders

540 & 541 Series, 800 and 1500mA Lamps
Rating: 660 Watts, 600 V
Listing: UL File No. E-13408; CSA File No. LR95423. 540.X and 541.X versions UL listed and CSA certified for outdoor use in enclosed signs and fixtures.
Download Kulka Specs – 540 & 541 Series, 800 and 1500mA Lamps

582.GDF™ & 583.GDF™ Series Lampholders, Stationary, For 800 and 1500mA Lamps
Completely isolates the face of the socket from ground. No metal clips means no corrosion or electrical grounding.
Download Kulka Specs – 582.GDF™ & 583.GDF™ Series

1547 & 1548 Series High Output Pedestal Type Lampholders, For 800 and 1500mA Lamps
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.
Download Kulka Specs – 1547 Series High Output Pedestal Type Lampholders