The screw in lamp base (E40) is the same as used for many HID lamps. This lamp doesn't need a ballast and is plugged directly into a 240 volt wall socket, so the lead needs to have a flat earth pin.

• No ballast required
• Special coil design to concentrate light output
• Very high lumen per watt ratio
• Reaches optimum light output in less than three minutes
• Wattage and lumen output remains constant during operation
• 6500k
• 75 watt