Kulka 05302 - KULKA 530-2 Tombstone Fixed Fluorescent End (KULKA 530-2 TOMBSTONE FIXED) Recessed Double Contact Lampholders For 800 and 1500mA Lamps 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