... lifespan.3.Lower power.4.CE&RoHS approved. High bright 5mm round head LED for sign board Characters1.High quality,long lifespan.2.Low ... head,5mm round head,8mm round head, 10mm round head.2.Flat head series:3mm flat head,5mm flat head,8mm indent head,10mm indent head.3.Indent head series:3mm indent head,5mm indent head,8mm indent head ...