Your company account is blocked and you cannot place orders. If you have questions, please contact your company administrator.
  • Over 2 million items in stock
  • Up to 5 years guarantee²
  • Personal consultation and expert advice
  • Exclusively for trade customers⁵
  • +44 (0) 20 4640 3044
Toggle Nav
Basket Basket
Service
Toggle Nav
Contact Us
Any questions about our products or services?

The Lights.co.uk Professional Team is happy to help.

020 4525 6865

Already a customer? Log in | New here? Create an account and get an extra 15% off*

Receive a 15% welcome voucher* when you register as a trade customer

*The voucher is valid for 90 days from the date it is sent by email. Receive an extra 15% off with no minimum spend required. The voucher is valid for single use only, limited to one redemption per customer and per order, and cannot be combined with other promotions (voucher codes). After creating an account, you will automatically receive the loyalty level ‘Basic’. The discount cannot be applied retrospectively once an order has been placed. The offer excludes items from the following manufacturers: Anglepoise, Artemide, Axo Light, Bankamp, Beacon Lighting, Berliner Messinglampen, BOPP, Bover, Brumberg, Casafan, CMD, Decor Walther, DOMUS, Egger Licht, EGLO, EGLO Connect, Escale, Faro Barcelona, Flos, Fontana Arte, Forestier, Foscarini, FRANDSEN, Fritz Hansen, GUBI, HEAVN, HerzBlut, ICONE, Ingo Maurer, Jieldé, Kartell, Knapstein, Ledvance Smart+, LE KLINT, Louis Poulsen, Luceplan, LZF LAMPS, Marchetti, Marset, Masiero, Maytoni, Midgard, Nemo, Nordlux, Oluce, Philips, Philips Hue, PURE, Q-Smart-Home, Rotaliana, Schöner Wohnen, Serien Lighting, Slamp, Steinel, Tecnolumen, tint, Tom Dixon, TWINKLY, Umage, Westinghouse and WiZ.

Register now

Back
Print:
main product photo
Sylvania

Sylvania E27 Filament LED ST64 4W 2,700K 840 lm

SKU
10021981
Datasheet
  • Material: Glass
  • Supply voltage (volts): 230
All product details

Unlock exclusive benefits in our ProShop

Create a customer account to benefit from exclusive trade pricing with up to 55% off on selected brands.

Register now
Sylvania E27 Filament LED ST64 4W 2,700K 840 lm
Sylvania E27 Filament LED ST64 4W 2,700K 840 lm
  • 50 days free returns
  • Up to 5 years guarantee
Product details Product description Downloads From the same series Accessories
Product details

Manufacturer

Brand:
Sylvania
Item no.:
10021981

Colour & Design

Material:
Glass

Dimensions

Length (in cm):
14
Diameter (cm):
6.4
Net weight (kg):
0.055

Light Source

Wattage (watts):
4
Base type:
E27
Luminous colour variant (value):
2700 K Warm white
Light output per light source (lm):
840
Colour rendering (Ra):
80
Beam angle:
320
Light output (in lumen):
840 lm

Electrical information

Energy Efficiency Class:
Datasheet
Average lifetime (h):
50000 h
Reference value (watts):
60
Energy consumption (kWh/1000h):
4

Additional Functions

Dimmable:
No

Technical Specifications

Supply voltage (volts):
230
Manufacturer information / person responsible for the EU
Manufacturer information Feilo Sylvania Germany GmbH 22 Népfürdő utca, Duna Tower, Building B, Floor 3, 1138 Budapest (HU) Tel. +36 18805900
Warning symbols
Product description

Sylvania E27 ST64 4W 2,700 K filament LED bulb


This LED bulb with an E27 base, featuring a rustic-style glass bulb and visible LED filaments, looks particularly elegant even when used in an open-design luminaire or a transparent lampshade. It provides warm white lighting.

This decorative LED bulb is suitable for use in private homes, as well as in hotels, restaurants and many other commercial settings.

- Not dimmable

Downloads
PHOTOMETRY_IES
Contact Us
Any questions about our products or services?

The Lights.co.uk Professional Team is happy to help.

020 4525 6865

Lights.co.uk Professional

  • Up to 5 years guarantee
  • Dedicated Account Managers and expert advice
  • The UK's largest selection of brands with over 2 million in-stock items

The voucher is valid for 90 days from receipt.The strike-through prices correspond to the manufacturer's RRP. All prices include 20% VAT, delivery costs excluded.

¹ As a registered trade customer, you automatically benefit from a pre-applied discount in our shop. In addition, electricians, architects, planners, as well as property and facility managers can receive special offers and conditions to suit their specific needs. For further details, please speak with your Account Manager.

² If the manufacturer offers a guarantee on the items we sell, you can benefit from up to 5 years coverage on the following brands — extending beyond the statutory warranty period: Arcchio, Bopp, Brumberg, CMD, Deko-Light, Dotlux, Erco, Escale, EVN, Glamox, Juliana, LTS, Lucande, Paulmann, Performance in Lighting, Philips, Regent, Ribag, RZB, Schuller, Siteco, SLV, Steinel, The Light Group, Westinghouse, WIBRE, XAL, Zumtobel.

For more information on warranty terms, please refer to our terms and conditions of sale.

³ Free delivery on orders over £50 (incl. 20% VAT) within the UK

⁴ The newsletter welcome voucher applies to orders over £99 (incl. 20% VAT), the following manufacturers are excluded from this offer.

⁵ Sales are limited to businesses, entrepreneurs, freelancers, and public institutions. We do not sell to private customers for personal use. All prices are in pounds and include VAT. Quotes are provided without obligation.

* Extra 15% off | The voucher is valid for 90 days from receipt. You receive a 15% voucher — without minimum order value. Voucher only valid once per customer and order, discount cannot be used alongside any other voucher code promotions. Once registered, you'll be opted in to the 'Basic' level as part of our loyalty scheme. Discount cannot be subsequently deducted from the invoice amount. The following manufacturers are excluded from this offer.

© 2026 Lampenwelt GmbH