Part Number UL-542 FIG2.4(150 C having (CAGE Code 81345) and FSC 6250 Ballasts Lampholders and Starters in stock with ready to ship. Get an instant quote for UL-542 FIG2.4(150 C Socket Lamp Starter by Underwriters Laboratories Inc. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.