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Ledvance LED ST64 4W E27 Performance Class Filament Warm White Opal
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Ledvance LED ST64 4W E27 Performance Class Filament Warm White Opal

Sold & shipped by Lightbulbs Direct

Available online only and not stocked in B&Q stores

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Product details

Product information

    This elegant 4W LED ST64 light bulb from Osram offers all the benefits of LED technology with the vintage style of the classic LED ST64 Edison shape.

    Its LED 'filaments' are housed in an opal white glass envelope to recreate the look of traditional incandescent light bulbs. It looks great either hung as a shadeless pendant, or used in a vintage floor or table lamp.

    While it might look like an incandescent light bulb, its performance is far more efficient. The 4W squirrel cage light bulb emits 470 lumens of warm white 2700K light, perfect for general lighting in homes and commercial spaces. Its long 15,000 hour life means that once the light bulb is installed, it will be years before it needs replacing again. The ES-E27 Edison screw (27mm) cap retrofits to existing light fixtures, making installation quick and easy.

    Features a commonly used ES-E27 Edison screw (27mm) cap/base.

    • Non-dimmable
    • Life length - 15000h
    • Guarantee - 4 years
    • Life length - 15000h

    Features and benefits

      Estimated running cost £1.05 per year (based on 5-hours per day)

      • ST64 shape LED bulb; compatible with existing fixtures with a E27 holder; designed for retrofit replacement of incandescent bulbs.
      • Glass Type: Frosted
      • Rated Life: 15,000 hours
      • Energy Saving: 90% saving on a 40W traditional ST64
      • High colour rendering (CRi >80) provides vivid and natural light.


      Bulb typeST64
      Cap fittingEdison screw cap (E27)
      Colour rendering index (CRI)80
      Colour temperature2700K
      Energy rating post 2021Rating not required
      Energy rating pre 2021A++
      Equivalent wattage40W
      kWh per 1000hr life4kWh
      Light technologyLED filament
      Light colourWarm white
      Mercury content0mg
      Model name/number4058075438712
      Pack quantity3
      Power output4W
      Product diameter64mm
      Product length143mm
      Switch cycles100000
      Warm up time0.5s
      Product code4058075438712