color:picture color 5mm diode: Material:glass color issuance of light: red + blue + green (rapid flashing) Diameter: 5mm Total length: approximately 0.98 inches / 2.5 cm LED Holder: Fit LED Diameter: 5mm/0.2 inch Thread Diameter: 8mm / 0.3 inch ; Total Length: 12 mm / 0.47 inch Material: Metal,Copper; Metal LED holder, chrome plated, fixing hex nut, suitable for use with 5mm LED. Package Content: 50 x 5mm diode electroluminescent LED 20 x LED Holders Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 50 pcs 5mm RGB LED Light Emission Diode & 20 Pcs Copper 5mm Light Emitting Diode LED Holder Direct voltage: 2, 0-2, 3 V Reverse voltage: 5V Current: 20mA Operating temperature: -25℃ -85℃