... Square size:4x4mm2.Package Dimension: 25*37.1mm 3.Super Bright Red 4.Rohs approvedLED Dot Matrix Good ... voltage and current operation 3. Ultra-low power consumption 4. Solid-state LED chip based 5. Long life ... and wider visual angle 9. Meet RoHS, ISO certifications.4) Applications: outdoor or indoor using, elevators/lift, ... :Inter size: φ1.9mm, φ3mm, φ3.7, φ 4.8, φ5mm, φ10mmouter size:17.8 x 12.7, ...