uxcell 2 x 3 x 4mm Square Head Blue LED Bulb Emitting Diodes 30 Pcs Product Name : Emitting Diode;Material : Metal, Plastic Emitting Light Color : Blue;Working Power : 3-3.4V Head Size(Approx) : 4 x 3 x 2mm/ 0.157" x 0.118" x 0.0787" (L * W * T);Pole Size (Approx.) : 0.58 x 17mm / 0.228" x 0.669" (D * Max.L) Pitch : 2mm / 0.0787";Head Housing Color : Clear Weight : 8g;Package Content : 30 x Emitting Diode