Signal construct melb series led spot light lamps 24v acdc ba9s signal construct melb2244 a blue single led spot light lamp with a ba9s base that is designed to provide signal indication over long distances high luminous efficiency from a specially designed ultrabright 3mm led together with a highly reflective body and narrow beam width give up to 10x the brightness and recognition of standard signalling lamps signal construct melb2244 spot light ba9s blue 24vdc