Syringe Valve Cores (A-dec #026.033.00)Valve Core onlyPackage of 10Replaces 24V Volt/150 Watt bulbs in older 6300 lightsA-dec is a registered trademark of A-dec, Inc.DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec products.