Signal Relay Valve Stem Assy w/ O-Rings, Fits Foot Control Relay (A-dec® #22.0778.00) Foot Control (A-dec® #38.0050.00) Prior to 1980 Replaces 24V Volt/150 Watt bulbs in older 6300 lights A-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.