7 Watt C7 Transparent Outdoor Twinkle or Blinking Replacement Christmas Bulbs, 25 Pack (Blue) 25 Pack of Transparent Blue 7 Watt C7 130 Volt Light Bulbs With an Candelabra (E12) Base Works Great in Light Strings Used for Special Events Such as Christmas and Parties Rated For Both Indoor and Outdoor Use Candelabra (E12) Brass Base Randomly Blinks or Twinkles