# Sodium Lamp Helios E40 100W (WLS-2274) — high-pressure sodium light bulb

**URL:** https://aio.lv/en/product--helios-wls-2274--12109931
**Data updated:** 2026-03-20 10:01 (EET)
**Category:** LED Bulbs
**Manufacturer:** Helios
**Manufacturer code:** WLS-2274
**EAN:** 5907758835586
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--helios-wls-2274--12109931

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

High-pressure sodium lamp Helios E40 100W (WLS-2274) is a single-ended sodium light source with E40 base and 100-watt power rating. Designed for industrial and outdoor lighting, it provides high luminous efficacy suited for street lighting, warehouses, workshops and horticultural supplemental lighting where warm amber light and efficient lumen output are required.

## Long description

High-pressure sodium lamp Helios E40 100W is a single-ended sodium light source with an E40 screw base and a rated power of 100 watts. Designed for industrial and outdoor applications, this lamp produces warm amber light with high luminous efficacy, making it suitable where energy-efficient, high-lumen output is required. The lamp is intended for fixed luminaires with appropriate magnetic or electronic ballasts for high-pressure sodium technology and is commonly used in street lighting, warehouses, workshops and supplemental horticultural lighting.
Advantages
The Helios E40 100W sodium lamp offers a high lumen-per-watt ratio and long operating life typical for high-pressure sodium technology. Its E40 base ensures compatibility with standard industrial and street luminaires. The warm amber spectrum improves visual contrast in outdoor environments and contributes to reduced glare in large-area installations. The sealed single-ended design simplifies installation and replacement while maintaining stable light output when used with correct ballast and fixture.
Suitable for
 Street and roadway lighting in municipal and industrial areas
 Warehouse and factory lighting where high lumen output is needed
 Workshops and outdoor service areas
 Supplemental horticultural lighting for species responsive to orange-red spectrum
 Parking lots and security lighting in combination with appropriate controls
Key specifications
 Lamp type: high-pressure sodium, single-ended
 Base: E40 screw
 Rated power: 100 W
 Color appearance: warm amber / orange-red dominant spectrum
 Primary applications: outdoor and industrial luminaires, horticulture supplemental lighting
 Mounting: requires compatible ballast and fixture rated for high-pressure sodium lamps
How to use
Install the lamp into a compatible luminaire with an E40 socket and a ballast designed for high-pressure sodium lamps. Ensure power is disconnected before replacing the lamp. After installation, allow a short warm-up period for the lamp to reach full luminous output and stable color. Do not operate the lamp on mains without the correct ballast or on dimming circuits that are not specified for high-pressure sodium technology. Replace the lamp at the end of its rated life or when luminous output decreases below acceptable levels.
Usage recommendations
Operate the Helios E40 100W lamp in fixtures that provide adequate heat dissipation and protection from moisture to preserve service life. Use compatible ballasts and follow local electrical regulations. For horticultural applications, combine this lamp with full-spectrum fixtures if broader spectral coverage is required for vegetative growth stages.

## FAQ

### How much does the Sodium Lamp Helios E40 100W (WLS-2274) cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 176 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Helios products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Helios service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12109931/67645878_large.webp