Notes: This Energy-saving Lamp can't be linked on to 220V, want ballast to drive!!!This energy-saving tender bulbs may be more and extra brilliant when lighting. It is a defense voltage energy-saving mild bulb. Ordinary energy-saving bulb brights greatly directly, that may decrease the lifetime of the bubble: Diameter: 2 CM; The length(with feet) is 5 CM; The pitch is 0 CM color of the appearance: sliver or gold Temp.: WhiteApplication: Suitable for replacing installation, it has its particular ballast efficiency, resembling about 20 watts halogen lamp bead effect, white mild can shine somewhat extra lamps is probably complete inspection, aging, attempt the light earlier than shipment, please feel relieved to purchase.