Replacement bulbs Helix spiral bulbs Screw (ES / E27) 30w daylight bulb (ES)

30w daylight bulb (ES) HELIX/30W/ES/640 - Pro-Lite

Pro-Lite HELIX/30W/ES/640: 30w low energy saving daylight bulb, Screw cap, ES, E27, 6400K, SAD - from £3.43

Description of HELIX/30W/ES/640 - Pro-Lite

This is product manufacturers code HELIX/30W/ES/640 by Pro-Lite. If you need to contact us about this product, please quote our product reference of 325.

Light output is equivalent to 150w of incandescent light, although it will appear much brighter because of the daylight colour temperature.

As helix spiral lamps are hand made there may be variations in the height of the glass tubes. The height provided in the specifications area is an average, some batches may vary.

Daylight bulbs

The colour of the light makes this bulb especially suitable for any area where good light is required, e.g. as bathrooms kitchens or any area where detailed work such as sewing, reading or cooking etc. Colours will appear in their 'true' shades when viewed with this type of light.

Daylight bulbs are also suitable for use in SAD (Seasonal Affective Disorder) such as light boxes and alarm clocks etc.

The colour of the light is 6400K which is the same colour as sunlight. the barcode of this product is 5051203028631.

Daylight Sizes and Wattages

We stock a wide rage of daylight bulbs in various sizes, wattages and lamp caps.

To find a different size or wattage, either select the 'Alternative products' tab above, or try our Replacement Daylight Bulbs section.

Comparing light bulbs

When you're comparing light bulbs to decide which one to buy, remember that light output is measured in lumens. Some bulbs produce more lumens for the same amount of electricity (measured in watts), which means that not all bulbs of the same wattage are the same brightness.

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(inc. VAT at 20%)
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Quantity discounts

Quantity Price each
1 £5.18
2-3 £4.57
4-9 £4.27
10-49 £4.08
50-99 £3.85
100-499 £3.71
500-999 £3.57
1000+ £3.43

Product variations


Our product ref
Total wattage
Lamp cap
E27 Screw (ES)
Bulb type
Low energy
Mfr part #


A 30w daylight bulb with a screw fitting. Huge light output suitable for SAD applications and other applications where high light intensity is required.