Bulbo 57 is an iconic design from the Achille Castiglioni collection. Initially designed for the Xi Triennale in 1957, the oversized industrial bulb houses a striking filament — a glorious piece of industrial design for contemporary homes. Recently re-released for 2020, Flos have reproduced the classic filament in tungsten with an LED source, preserving the same colour and intensity as the original with reduced energy consumption.
Materials & Finishes
A bulb-shaped lighting unit made of blown borosilicate glass, with good shock resistance properties and excellent transparency, due to the reduced thickness of the material. The led filament is held in position by a molybdenum structure incorporated in a thin tube, also made of borosilicate, which is used in turn to extract the air and therefore prevent any internal condensation build-up. The filaments which convey the power are housed in a dedicated cable gland designed to satisfy the safety regulations and standards. The light source consists of a 225 mm long flexible micro-led filament, using customised electronics which can handle a light flow of 210 – 450 lumen, using the most common Triac dimmers. Luminous flux is in proportion to the voltage for each lighting fixture. The light temperature of 2200°K was selected to replicate that of the traditional incandescent lamp. The same applies to the high CRI (95), which guarantees a high-quality standard of chromatic performance.
Ø 20 cm. Max cable length: 2m.
225 mm long flexible micro-led filament , 6W 2200°K 210 - 450 lumen CRI95.
Not all Flos products are available to buy online. However, the full range can be ordered via our London based showroom. For more information, or to discuss the Chaplins Price Promise, please call 020 8421 1779 or use our handy live chat feature to speak with a design expert immediately.
Year of design
1957 / 2019