All orders are dispatched via Royal Mail 2nd class. Over the years we have found this to be a cost-effective and reliable delivery service that takes 2-3 days (excluding Sunday).

Next Day delivery is available if the order is placed before 3pm the day before and costs £10 using Parcel Force. Please select this option during the checkout process.

Warranty & Returns

We supply a 3 year warranty on all products as standard. In the unlikely event a product suffers a technical issue we will replace it quickly and free of charge within 3 years of purchase.

When you buy any product from well-lit, you have 365 days to return the product to us for any reason, for a full refund.

Technical Details

  • Wattage: 8w
  • Lumens: 400
  • Colour Temperature (k): 2800k - 2000k (Dim to Warm)
  • CRI: 97
  • Dimensions: 138mm - 64mm
  • Lifespan: 20,000 hrs
  • Fitting: E27
  • Warranty: 3 Years
  • Dimmable: Yes
  • Shape : ST64
  • Recommended Dimmers : Varilight V-Pro & Lightwave RF Version 1

Jax Dim to Warm LED Filament ST64 Bulb


Boasting patented filament technology, the Jax ST64 has the capability to completely transform the atmosphere of any environment.

Designed to dim from 2800 to 2000k, this bulb can project 400 lumens at full capacity. Equally suitable for office lighting or dinner party ambience, the Jax can create – and complement – almost any setting with or without a shade.

Available from our Dim to Warm range, the Jax stands out from available alternatives by providing uniformed light distribution.  A crossbreed of traditional and candle bulbs, it’s a stylish yet uninstructive addition to your living room, kitchen, bedroom or bathroom.

See your home in its true colours

To see how higher CRI can change the look of your entire home, move the slider below.

High CRI lighting
Low CRI lighting

If LED lamps are so great, why is there so much terrible LED lighting? Are dull colours just the price you pay for lower bills?

The answer to these questions is "Colour Rendering Index".

In most LED lamps it's simply too low. At Well-lit, all our LED lamps have CRI values of 93 or above. So you can replace your halogen and incandescent lamps without losing quality of light. (And change those poor quality LEDs for something rather better.)

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