Designed to complement modern interiors and minimalist fixtures, the Osram LEDinestra 3.1W 300mm S14s Dimmable Bulb delivers the perfect balance of aesthetics and function. Its slender linear shape and square end peg (S14s) fitting make it an ideal solution for mirror lights, designer sconces, and architectural fittings where form is as important as performance. The warm 2700K tone casts a soft, welcoming glow that enhances the atmosphere of any space.
This dimmable 3.1W LED bulb provides 250 lumens of cosy, warm white (2700K) light, creating an inviting ambience in bathrooms, bedrooms, dressing rooms, and commercial décor environments. Thanks to its dimming capability, you can customise the brightness level for relaxation, accent lighting, or functional use—making it a versatile and energy-efficient upgrade from traditional halogen tubes.
With a 15,000-hour lifespan, this architectural LED lamp offers long-term savings in both energy and maintenance. It operates on 240V and is a direct replacement for older incandescent or halogen S14s bulbs, ensuring simple installation and instant improvement in efficiency. Its high-quality construction from Osram means dependable performance and consistent light quality throughout its life.
Wattage | 3.1w, 3.1W |
Cap | S14d |
Input Voltage | 240V |
Colour Temperature | 2700k - Warm White |
Length | 300mm |
Diameter | 29mm |
Technology | LED |
Lumens | 275lm |
Bulb Colour | Frosted |
Brand | Osram |
Almost all orders placed before 1.00pm (Monday-Friday) will be despatched the same day, (providing we have the items in stock).
We offer the following delivery options:
For orders under £50, please see the following delivery tariffs. Please note that some delivery locations / times (see below) will incur additional charges.
We are also able to offer the following timed deliveries.
Delivery Locations Incurring Extra Charges for signed for deliveries.
The following locations will incur additional charges if you select a signed for delivery (or for large items which require delivery by courier):
If you have any specific delivery requirements, call our sales team on 01793 863409.
Our aim is to provide you with the highest levels of service possible and this extends to our flexible and customer-friendly policies.
Please do not return any items to Heathfield LED without first contacting us by phone or email.
phone: 01793 863409 (9am to 5pm Monday to Friday)
email : returns@heathfieldled.co.uk
If you wish to return goods for any reason please supply the following information:-
We will do everything possible to comply with reasonable requests for returns and will issue any refund due to you as promptly as possible.
If you have any concerns or questions please call or e-mail us!
What doesn’t our warranty cover?
In any instance where your bulb has developed a fault, we will do our utmost to replace it or offer a full refund (provided the item is still within its stated warranty period). However, if it becomes apparent that the product has been misused, tampered with or modified in any way, we will view this as having voided its warranty.
‘Misuse” includes, but is not limited to, incorrect operation by the user, use of non-dimmable bulbs on a dimmable circuit or connection to or operation with an unsuitable power supply. ‘Tampering’ or ‘modification’ can be interpreted as any activity designed to alter the product in such a way that it can be used in a manner that wasn’t intended by its original design. This can include rewiring, removing plugs, home repairs or changing components. Unfortunately, we won’t be able to replace any item that has undergone any such process.
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