# Power Adapter MEAN WELL PWM-40-12 40.08W Universal Input 90-305V

**URL:** https://aio.lv/en/product--mean-well-pwm-40-12--9875694
**Data updated:** 2025-12-30 08:38 (EET)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** PWM-40-12
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.92 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 28.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-pwm-40-12--9875694

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tuesday | free |
| Pickup points | 07.08.2026 | 1.79 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

The MEAN WELL PWM-40-12 is a universal power adapter with a power output of 40.08W. It supports an input voltage range of 90-305V, making it suitable for various applications, particularly for powering strip lights. The device is compact with dimensions of 53mm width, 150mm depth, and 35mm height, and features a black color. It boasts a long mean time between failures (MTBF) of 995500 hours, ensuring reliability and longevity.

## Long description

The MEAN WELL PWM-40-12 is a universal power adapter with a rated output of 40.08 W and a wide input range of 90–305 V AC. Designed for powering LED strip installations, the compact black unit (53 × 150 × 35 mm) offers high efficiency and a long MTBF, and includes a 1.8 m flex and plug for straightforward connection.
Advantages
This adapter provides even PWM dimming down to 0% output and supports dimming control via resistance, 0–10 V control, or an external PWM signal. It achieves up to 90% efficiency, ensuring lower energy loss during operation, and its universal input makes it compatible with a wide range of mains voltages. The supplied 1.8 m cable and plug simplify installation in typical lighting setups.
Suitable for
LED strip lighting in residential and commercial spaces
Applications requiring PWM dimming to zero percent
Installations using 0–10 V or resistance-based dimming controls
Retrofit and new-build lighting projects with 90–305 V mains
Key specifications
Model: MEAN WELL PWM-40-12
Output power: 40.08 W
Input voltage: 90–305 V AC
Dimming methods: Resistance, 0–10 V, PWM signal
Efficiency: Up to 90%
Dimensions (W×D×H): 53 × 150 × 35 mm
Cable: 1.8 m flex and plug
Color: Black
MTBF: 995,500 hours
How to use
Mount the adapter in a dry, ventilated location and connect the mains input (90–305 V AC) according to local electrical codes. Connect the LED strip load to the adapter output, and use the chosen dimming method—resistance, 0–10 V control, or an external PWM signal—to adjust brightness. Ensure all connections are secure before powering on. Follow the manufacturer's wiring diagram and safety instructions when integrating into lighting circuits.
Usage recommendations
For reliable performance, install the adapter with adequate airflow and avoid enclosing it in tight, unventilated spaces. Match the LED load to the rated output and choose a compatible dimming control (resistor, 0–10 V controller, or PWM source) to achieve smooth dimming down to zero percent.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.49 kg |
| Power supply type | Universal |
| Mean time between failures (MTBF) | 995500 h |
| Operating relative humidity (H-H) | 20 - 95 |
| Storage temperature (T-T) | -40 - 80 |
| Operating temperature (T-T) | -40 - 85 |
| Storage relative humidity (H-H) | 10 - 95 |
| Height | 35 mm |
| Input voltage | 90-305 |
| Output voltage | 12 |
| Width | 53 mm |
| Depth | 150 mm |
| Product colour | Black |
| Purpose | Strip light |
| Input frequency | 47/63 |
| Input current | 0.6 |
| Output current | 3.34 A |
| Efficiency | 86 % |
| Output power | 40.08 W |
| Power protection features | Short circuit, Overload, Overheating, Over voltage |
| Power current type | AC-to-DC |

## FAQ

### How much does the Power Adapter MEAN WELL PWM-40-12 cost, and is it available for purchase?

The price is 33.92 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 Tuesday 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 mean well 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 mean well 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

### Where can I download the instructions for Power Adapter MEAN WELL PWM-40-12?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/9875694/64382256_large.webp