Cluster-type multi-LED bulb, for use in most tower lights or stack lights, Ba15d (bayonet) socket Specifications Bulb dimensions (mm) Max Dia 20mm – h=42.8mm Colour white Colour temperature (K) 6524 Expected life (hrs) 10000 Lamp type Multi-LED Material (base) Brass, nickel plated Material, bulb/cap Polycarbonate Nominal operating current (mA) 20 Number of LEDs 6 Operating temperature (?C) -0.666666667 Socket type Ba15d Type of light projection radial Weight (kg) 0.009 Product Packaging 1