Specifications: Bulb Size: T-1 3/4 (5mm). LED Color: Blue. Luminous Intensity: 1.5cd. Viewing Angle: 70¡ã. Forward Current If: 20mA. Forward Voltage: 3.4V. LED Mounting: Through Hole. Lens Shape: Oval. Wavelength Type: 475nm. RoHS Compliant: Yes.