LiquidLEDs is now Dulora. Same products, same team, same quality. Read the full story →
★ 4.7 across 2425 verified reviews
GO TRADE ↗
Numer SKU: F427-T30S-A-20K
BURSZTYNOWE ŻARÓWKI LED

4W Średnia Spiralna Żarówka LED E27 w Ultra Ciepłej Barwie

€21,00 EUR
dokładność odwzorowania kolorówWysoki współczynnik oddawania barw CRI 90+

Ten produkt znajduje się w naszym magazynie w Sydney. Zamówienia złożone w dni robocze przed godziną 10:00 czasu AEST zostaną wysłane tego samego dnia; zamówienia złożone później zostaną wysłane w następnym dniu roboczym.

Klient biznesowy? Przejdź do naszego sklepu dla klientów biznesowych, aby się zalogować lub zarejestrować i uzyskać ceny hurtowe ↗ .

Free shipping over €299* 30-day returns
4.7 ★ Average rating
Secure checkout
Go Trade. Lighting Professionals.

Linear by Design

The tubular form brings a clean, architectural quality to spaces that demand something beyond the ordinary globe. Elongated, precise, and visually distinctive, it works as a statement piece in bare filament pendants, bathroom mirror bars, and any fitting where the bulb itself is part of the composition.

Where It Belongs

Run three tubular bulbs above a bathroom mirror and the room shifts from functional to considered in a single decision. Line them above a kitchen benchtop or hang a single long tube in a narrow corridor and the effect is the same: clean, architectural, deliberate. Interior designers and hospitality fit-out teams specify the tubular form because it brings a graphic quality to a space that rounder bulbs cannot. It is lighting that communicates that someone thought carefully about every detail.

Każdy zakup przywraca wzrok

Dulora z dumą wspiera Fundację Freda Hollowsa. Każde zamówienie pomaga finansować operacje zaćmy i programy opieki okulistycznej w całej Australii. Prosty zakup żarówki. Zmieniający życie rezultat dla osoby, która nigdy nie mogła wyraźnie widzieć.

Zobacz, jaką różnicę robi CRI

Standard CRI 80+

Matowe, wyblakłe światło

Czerwienie tracą swoją ciepłą barwę. Skóra wygląda blado. Grafika traci głębię. Pomieszczenie sprawia wrażenie pozbawionego życia, niezależnie od liczby użytych żarówek.

Dulora CRI 90+

Noticeably better light

Colours come back to life. Reds stay warm, skin tones look natural, and surfaces take on the depth and texture they were always meant to have. A significant step above what most homes and venues settle for.

TRUSTED BY LEADING VENUES AND INSTITUTIONS
Leicester Square TheatreHilton Hotels and ResortsGrand Théâtre de GenèveW HotelsRegent TheatreChichester Festival TheatreThéâtre des Champs-ÉlyséesThéâtre de l'ŒuvreHotel SeeburgThe Ritz-CarltonCapella Hotels and ResortsRoyal Shakespeare Theatre

Funkcje produktu

Wysoka dokładność odwzorowania kolorów – uwydatnia odcienie, zapewniając bogatszy, bardziej naturalny wygląd.

Opis

Skręcony żarnik biegnący przez całą długość średniej bursztynowej szklanej rurki emituje 250 lumenów wyjątkowo ciepłego światła o temperaturze 2000 K przez oprawkę E27, tworząc unikalny rytm wizualny. Ściemnialna żarówka LED Medium Tube Spiral o mocy 4 W zastępuje tradycyjną żarówkę żarową 25 W, oferując wyjątkowo wysoką wierność odwzorowania kolorów oraz ciepłą, bursztynową poświatę, która równie naturalnie pasuje do szeregu identycznych opraw, jak i do pojedynczej oprawy stanowiącej główny akcent. Objęta 3-letnią gwarancją.

Efekt bursztynowego szkła

Skręcony żarnik wytycza czystą, nieprzerwaną linię wzdłuż całej rurki, świecąc przez barwione szkło ciepłym, bursztynowozłotym światłem. Bursztynowe szkło dodatkowo obniża temperaturę barwową poniżej 2000 K, nadając światłu ciepło blasku świecy, a ciągła spirala tworzy wzór wizualny odmienny od jednoliniowego żarnika w wersji vintage. Po wyłączeniu spirala pozostaje wyraźnie widoczna przez szkło — stanowi przemyślany, misterny centralny element każdej otwartej oprawy. Żarówka płynnie współpracuje ze ściemniaczem do obciążeń indukcyjnych po stronie opadającej, zachowując równomierne oświetlenie na całej długości spirali nawet przy najniższym ustawieniu.

Gdzie sprawdzi się najlepiej

Wielopunktowe kompozycje lamp wiszących, ramiona żyrandoli oraz ciągi identycznych opraw w stylu kawiarnianym, w których spiralny żarnik tworzy spójny efekt wizualny kilku takich samych żarówek. Naturalnym zastosowaniem w branży hotelarsko-gastronomicznej są nastrojowe aranżacje oświetlenia restauracji, korytarze butikowych hoteli oraz ciągi lamp wiszących w stylu barowym, gdzie ważna jest wizualna jednolitość wielu opraw. W domu jadalnie i salony z dwiema lub trzema identycznymi lampami wiszącymi nad stołem albo wyspą kuchenną zyskują dzięki spójnemu wzorowi spirali, którego jednoliniowy żarnik nie odtworzyłby równie harmonijnie. E27 pasuje do standardowych gniazd z gwintem Edisona stosowanych w większości opraw wiszących i lamp.

Dane techniczne

  • SKU
    F427-T30S-A-20K
  • Typ trzonka żarówki

    The end of the lamp that fits into the socket.

    E27 Edison Screw
  • Kształt żarówki

    The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb, and the number relates to the diameter of the bulb in millimetres. For example, a standard household bulb is the A60. The bulb is "A" shape, and the diameter would be 60 millimetres.

    T30
  • Napięcie wejściowe

    This voltage specification denotes the voltage level required for the LED bulb to operate correctly.

    220-240 Volt
  • Moc

    A rating, expressed in watts, indicates the rate at which a lamp consumes energy. Also known as wattage value.

    4W
  • Jasność

    A lumen measures the amount of visible light emitted by a source per unit of time. It indicates the brightness or illumination power of lamps and lighting systems.

    250 lumens
  • Temperatura barwowa

    An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four-digit number followed by (K), such as 2700K. High temperatures indicate white, "cooler" colours, while lower temperatures indicate yellower, "warmer" colours. Some typical Kelvin temperatures are 2700K (warm white) and 4000K (natural white).

    2000 Kelvin
  • CRI

    The Colour Rendering Index is an international system that rates a lamp's ability to render objects colours. The higher the CRI (based upon a 0-100 scale), the richer and more accurately the colours appear. CRI differences among lamps are not usually visible unless the difference is more than 3-5 points.

    90+
  • Możliwość ściemniania

    Indicated whether a product can be dimmed in conjunction with a suitable dimmer control.

    Yes, with most incandescent and LED dimmers.
  • Komfort dla oczu

    Eye comfort measures how stable and consistent a bulb's light output is. Even when invisible to the naked eye, flickering light can cause headaches, eye strain, and fatigue, particularly during extended periods of reading, working, or relaxing at home. Dulora's dimmable globes are independently tested by TÜV Rheinland and meet internationally recognised low-flicker standards at full brightness. For the best experience, pair with a quality LED dimmer, as flicker performance can vary depending on the dimmer used.

    Low Flicker (Pst LM < 1.0 at full load, TÜV Rheinland tested)
  • Odpowiednik żarówki żarowej

    The wattage value of an incandescent lamp of similar brightness.

    25W
  • Wykończenie szkła

    The surface finish of a bulb may affect the brightness of the emitted light.

    Amber
  • Średnica żarówki

    Light bulb: a measure of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.

    30 mm
  • Całkowita długość

    It is also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length from the top of the bulb to the bottom of the base or pins and is typically expressed in millimetres.

    185 mm
  • Średnia żywotność

    A measure of the average length of time between first use and the point when 50% of the lamps tested have stopped functioning, using an operated cycle of 3 hours on, 20 minutes off.

    25,000 hours
  • Kąt wiązki światła

    The width of a light beam is expressed in degrees.

    360 degrees
  • Materiał

    The primary material used in this product.

    Glass + Aluminium
  • Gwarancja producenta
    36 Months
  • Certyfikaty

    Every Dulora bulb is independently tested to meet strict international safety and environmental standards. Free from lead, mercury, and other restricted substances, and certified safe to install in any residential or commercial setting.

    SAA, RCM, EMC, CE, UKCA

Frequently Asked Questions

How bright are Dulora bulbs?

LED brightness is measured in lumens, not watts. Here's a quick conversion guide:

  • 2-3W LED ≈ 25W incandescent (200-300 lumens)
  • 4-5W LED ≈ 40W incandescent (400-500 lumens)
  • 6-8W LED ≈ 60W incandescent (650-800 lumens)
  • 7.5-10W LED ≈ 75-100W incandescent (900-1200 lumens)
  • 11-12W LED ≈ 100-125W incandescent (1300-1500 lumens)

All Dulora product pages list wattage and lumen output so you can choose the perfect brightness for your needs.

What countries do you ship to?

Dulora bulbs are designed for over 25,000 hours of use. If you use your light for an average of 3 hours per day, your LED bulb could last over 22 years. This exceptional longevity significantly reduces the frequency of replacements compared to traditional incandescent bulbs, which typically last only 1,000-2,000 hours. Note that all LED bulbs' light output gradually decreases over time, a phenomenon known as lumen depreciation.

Are Dulora bulbs dimmable?

Yes, most Dulora bulbs are dimmable, allowing you to create the perfect ambience for any occasion. Look for the "dimmable" specification on the product page. For optimal performance, we recommend using LED-compatible dimmers. Some older dimmer switches may cause flickering or buzzing with LED bulbs. If you experience any issues, please contact our customer support team for assistance.

What is colour temperature, and which should I choose?

Colour temperature refers to the warmth or coolness of light, measured in Kelvins (K):

  • Ultra & Extra Warm (2000K-2200K): This calming light creates a relaxing ambiance, similar to the warm glow of candlelight.
  • This calming light gives off a warm glow, similar to candlelight. However, because it is such a soft light, it may not be suitable for activities that require focus, such as reading.
  • Warm White (2700K-3000K): This colour creates a cozy, inviting atmosphere similar to traditional incandescent bulbs. It is ideal for living rooms, bedrooms, and dining areas.
  • Natural White (3500K-4000K): Provides a balanced, neutral light perfect for kitchens, offices, and workspaces.
  • Cool White (5000K-6500K): This colour delivers a crisp, energising light similar to daylight. It is best for task lighting, garages, and areas requiring detailed visibility.

Choose based on the mood you want to create and the purpose of the space.

Are Dulora bulbs compatible with my existing fixtures?

Dulora offer bulbs in all standard base types, ensuring compatibility with most fixtures. Common bases include:

  • E27/ES: Standard Edison Screw, the most common base type (27mm diameter)
  • B22/BC: Bayonet Cap, standard in many regions (22mm diameter)
  • E14/SES: Small Edison Screw, used in chandeliers and smaller fixtures (14mm diameter)
  • B15/SBC: Small Bayonet Cap, used in smaller fixtures (15mm diameter)
  • E12/SES: Mini Edison Screw, used for chandeliers and small fixtures from the US (12mm diameter)

Check your existing bulb's base type and match it with the corresponding Dulora product. If unsure, take a photo of your current bulb base and contact our customer service team for assistance.

Can Dulora bulbs be used in enclosed fixtures?

Some Dulora bulbs can be used in enclosed fixtures, but not all. Look for the "enclosed fixture compatible" specification on the product page. Enclosed fixtures trap heat, which can shorten LED lifespan if the bulb isn't designed for such applications. Our enclosed fixture-compatible bulbs feature enhanced heat dissipation technology to maintain performance and longevity even in enclosed environments. For fixtures without proper ventilation, we recommend choosing bulbs specifically rated for enclosed use.

What is the difference between clear, frost, opal, and porcelain LED bulbs?
  • Clear LED bulbs have a transparent glass covering that showcases the filament inside, creating a decorative, vintage appearance. They produce more directional light and create beautiful shadow patterns.
  • Frost, opal, and porcelain LED bulbs diffuse light, reducing glare and distributing illumination evenly. These bulbs are ideal for ambient lighting and minimising shadows when fabric or glass shades are used. Frosted bulbs allow good light transmission but with slightly visible LED filaments. Opal and porcelain bulbs provide uniform light diffusion and better LED concealment. Opal bulbs have a shiny finish, while porcelain bulbs have a matte finish.

Choose clear bulbs for decorative fixtures where the bulb is visible and frosted, opal or porcelain bulbs for everyday lighting where comfort and light distribution are priorities.

How much energy do Dulora bulbs save compared to traditional bulbs?

Dulora bulbs use up to 90% less energy than traditional incandescent bulbs while providing the same brightness level. For example, a 6.5W GLS LED bulb produces the same light as a 60W incandescent bulb. This significant energy reduction translates to lower electricity bills and a smaller carbon footprint. Over the bulb's lifetime, you can save hundreds of dollars in energy costs per bulb.

What is your warranty policy?

Dulora bulbs come with a comprehensive warranty against manufacturing defects. Most of our products carry a 2-year warranty, while premium lines may offer extended 3 to 5-year coverage. If your product fails during the warranty period under regular use, we'll replace it free of charge. Simply contact our customer service team with your order number and a description of the issue. Our no-quibble guarantee ensures a hassle-free experience if you encounter any problems.

Still have a question?

Our team is available Monday to Friday, 8am to 6pm AEST.

Chat with us

Płatność i bezpieczeństwo

Metody płatności

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • iDEAL Wero
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Afterpay
  • Zip
  • Klarna

Twoje dane płatnicze są przetwarzane w bezpieczny sposób. Nie przechowujemy danych karty kredytowej ani nie mamy dostępu do informacji o Twojej karcie kredytowej.

  • 5 stars: 3 (75%)
  • 4 stars: 1 (25%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Ray L.
Haven't used this item as yet

Haven't used this item as yet ..as I'm using it in a demonstration....but will let you know...

Hi Ray,

Thank you for your review! We appreciate your feedback and hope the demonstration goes well. If you have any questions or need assistance with the product, please don't hesitate to reach out to us at help@liquid-leds.com. We're happy to help!

A
Anonymous (Sydney, AU)
A great bulb so far! looks really good

A great bulb so far! looks really good,.

Thank you for your positive review! We are glad to hear that you are enjoying our 4W Medium Tube Spiral LED Bulb E27 in Ultra Warm. We take pride in creating high-quality and aesthetically pleasing products. Thank you for choosing LiquidLEDs!

D
Dougall S. (Christchurch, NZ)
Exactly what I wanted

Very happy with the bulbs.

Hello Dougall S,
We are glad to hear that you've been having a good experience with our brand. We strive to keep our customers happy. Thank you for taking some time out of your day to express how you feel about LiquidLEDs.

I
I.G (Sydney, AU)
4W Spiral Medium Tube Dimmable LED Bulb (E27)

Excellent quality, No breakage - packaged well, quick delivery.
I'm making my own custom light fitting so yet to test the luminosity but am sure it will suffice.

Hello,
Thank you so much for taking the time out of your day to write this review for us. We are very happy to hear you’re enjoying your new LED bulb. Please tag us in any photos as we'd love to feature you on our website and/or social media platforms. Have a great day!

Dulora 4W Medium Tube Spiral LED Bulb E27 in Ultra Warm

4W Średnia Spiralna Żarówka LED E27 w Ultra Ciepłej Barwie

€21,00 EUR
Zobacz produkt
Zobacz produkt