Presenting the Girard Sudron F15 range of Twisted Candle Energy Saving Light Bulbs. Due to their visually stunning look and extremely high quality design these handcrafted bulbs are often used in fittings which display the bulb, for example chandeliers. All the bulbs in this range come with a life span of around 2000 hours, wattages that vary between 30 and 46 watts and either an E14, E27 or B22 cap.