LED Corn Light 21W 840 ES 4000K GEN3
SWAN LEDCORN-21W-840-ES – 21W LED corn bulb, 4000K neutral white, E27 base, CRI 84, 2520 lumens, energy-efficient with long lifespan. Ideal for residential and commercial lighting.
The SWAN LEDCORN-21W-840-ES is a powerful and efficient LED corn bulb designed to provide bright, neutral white illumination with excellent color accuracy. Featuring a 4000K color temperature and a CRI of 84, this 21-watt lamp delivers 2520 lumens of vibrant light, making it ideal for both residential and commercial lighting applications.
Equipped with a standard E27 base, this energy-saving bulb offers a long operational lifespan and is perfect for replacing traditional incandescent or CFL bulbs in homes, offices, retail stores, and hospitality environments.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | LEDCORN-21W-840-ES-SWAN |
| Brand | SWAN |
| Lamp Type | LED Corn Bulb |
| Wattage | 21W |
| Voltage | 220-240V (typical for E27) |
| Base | E27 |
| Luminous Output | 2520 lumens |
| Color Temperature | 4000K (Neutral White) |
| Color Rendering Index | CRI 84 |
| Lifespan | Long lifespan (typically 15,000+ hours) |
| Application Areas | Residential, commercial, retail lighting |
- Free delivery for all UK mainland orders over £48 inc VAT.*
- For orders under £48 inc VAT:
- For all other items delivery is charged at £3.90 inc. VAT.
- Delivery charges for batteries weighing over 1kg is £5.95 inc. VAT.
- Batteries weighing under 1kg have a delivery charge of £2.75 inc. VAT.
- All Fluorescent or LED Tubes 3ft or above in length will incur carriage at £9.50 inc. VAT.
- Light fixtures 600mm or greater are also sent by carrier and will incur carriage at £9.50 inc. VAT
- All Giant Vintage LED Lightbulbs will incur carriage at £9.50 inc VAT
Next day delivery
Next day delivery is available for all products in stock if ordered before 3pm. For more information read our delivery page.
Please note we are currently only able to deliver on Monday - Friday for next day orders.
Delivery options to Europe and Rest of the World are available. Use the shipping estimator at the checkout for prices.
We want you to have complete confidence when placing your order which is why we have a no-quibbles returns policy.
If you wish to return your items, please contact us via phone or email with the following details:
- Your contact details
- Your order number (starting 1000xxxxx)
- The reason for return
One of our customer services staff will contact you with instruction of how to proceed.
Call 01494 880099 or email sales@generallamps.com.
For further details see our guide on ordering, delivery & returns.