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header-product Uninterruptible Power Supply ONLINE USV-Systeme YUNTO Smile 400 Line-Interactive 0.4 kVA 240 W 2 AC outlets 12 V 4.5 Ah LCD Tower
84.99 €

Uninterruptible Power Supply ONLINE USV-Systeme YUNTO Smile 400 Line-Interactive 0.4 kVA 240 W 2 AC outlets 12 V 4.5 Ah LCD Tower

UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 1
UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 2
UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 3
UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 1
UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 2
UPS ONLINE USV-Systeme YUNTO Smile 400 Photo 3
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Uninterruptible Power Supply ONLINE USV-Systeme YUNTO Smile 400 Line-Interactive 0.4 kVA 240 W 2 AC outlets 12 V 4.5 Ah LCD Tower

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Short description

ONLINE USV-Systeme YUNTO Smile 400 is a Line-Interactive uninterruptible power supply (UPS) with 0.4 kVA (240 W) output capacity. It provides 2 AC outlets, a 12 V / 4.5 Ah battery and typical backup time of about 7 minutes at half load. Tower form factor with LCD display, compact footprint (101 × 300 × 142 mm) and 3.7 kg weight for protecting small servers, network devices and workstations.
Available for order: 2 pcs.
Warranty: 2 Years
SKU: 4405788
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
12.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 4.16 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
17.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.36 euros per month
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Product information

Description

ONLINE USV-Systeme YUNTO Smile 400 is a Line-Interactive uninterruptible power supply (UPS) designed for protecting small servers, network devices and workstations. With 0.4 kVA (240 W) output capacity, two AC outlets and an integrated 12 V / 4.5 Ah battery, the Smile 400 provides short-term backup power and automatic voltage regulation to keep connected equipment running during power disturbances. The unit comes in a compact tower form factor with an LCD that shows operational status and basic measurements. Its footprint of 101 × 300 × 142 mm and 3.7 kg weight make it suitable for space-constrained environments where reliable, simple UPS protection is required.

Advantages

The Line-Interactive topology provides automatic voltage regulation and surge protection while delivering uninterrupted power during short outages. The built-in LCD offers clear, at-a-glance information about battery status, load and input/output conditions. Compact tower design and modest weight allow for flexible placement on or under desks and in small racks. Two AC outlets support basic device redundancy without additional power strips, and the integrated 12 V / 4.5 Ah battery delivers a typical backup time of about 7 minutes at half load, sufficient for orderly shutdowns or bridging to a generator.

Suitable for

  • Small office servers and NAS devices
  • Network switches, routers and VoIP gateways
  • Workstations, point-of-sale terminals and small PCs
  • Home lab equipment and media devices requiring short-term backup

Key specifications

  • Output power capacity: 0.4 kVA
  • Output power: 240 W
  • AC outlets: 2
  • Battery: 12 V / 4.5 Ah (internal)
  • Backup time: approximately 7 minutes at 50% load
  • Form factor: tower
  • Display: LCD status panel
  • Dimensions (W×D×H): 101 × 300 × 142 mm
  • Weight: 3.7 kg
  • Colour: black

How to use

Place the UPS on a stable, flat surface in a ventilated area, leaving clearance for airflow around the enclosure. Connect the UPS input to a grounded mains outlet and switch the unit on using the front panel controls. Plug critical equipment into the two supplied AC outlets. Monitor the LCD for input voltage, load level and battery status. In the event of mains failure, the UPS will automatically supply battery power to connected devices; use the provided runtime to save work and perform an orderly shutdown or transfer to a secondary power source.

Usage recommendations

For reliable operation, perform an initial battery charge cycle for at least 8–12 hours after first installation. Periodically test the UPS by simulating a power failure and verify that connected devices remain powered and shut down properly. Replace the internal battery according to the manufacturer's recommended interval or when runtime drops significantly. Avoid placing the UPS in direct sunlight or close to heat sources, and ensure load does not exceed the rated 240 W output.

Specifications

Form factor: The shape or design of the product.
Tower
Input operation voltage (max): The maximum input voltage supported by the device.
290 V
Input operation voltage (min): The minumum voltage needed by the device during operation.
162 V
Output power: The power that the device can produce.
240 W
Output power capacity: The maximum power that the device can produce.
0.4 kVA
UPS topology: The two main UPS topologies are Double-Conversion True Online and Standby / Eco. Many quality-based considerations are involved when choosing the the optimal UPS for the job, like how they are coping with voltage disturbances.
Line-Interactive
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features

Logistics data

Harmonized System (HS) code:
85078000

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
3.7 kg
Height: The measurement of the product from head to foot or from base to top.
142 mm
Depth: The distance from the front to the back of something.
300 mm
Width: The measurement or extent of something from side to side.
101 mm

Operational conditions

Storage relative humidity (H-H):
0 - 90
Operating relative humidity (H-H):
0 - 90
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
15 - 50
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Design

Display type: Type of display (screen) e.g. LCD.
LCD
Product colour: The colour e.g. red, blue, green, black, white.
Black
Form factor: The shape or design of the product.
Tower

Battery

Battery recharge time: Approximate time required to recharge the battery from completely empty to completely full
6 h
Typical backup time at half load: The amount of time that a backup energy source (e.g. UPS - Uninterruptible Power Source) can power the device for, when the backup energy source is half-loaded (50% of capacity).
7 min
Number of batteries supported: The number of batteries that can be used with the product.
1
Battery voltage: The voltage (V) of the battery.
12 V
Battery capacity: The amount of electric charge a battery can deliver at the rated voltage. The more electrode material contained in the cell the greater its capacity. A small cell has less capacity than a larger cell with the same chemistry, although they develop the same open-circuit voltage. Capacity is measured in units such as amp-hour (A·h).
4.5 Ah

Ports & interfaces

USB port: The device features a socket into which a USB cable can be plugged.
Yes
AC outlets quantity: The number of sockets in the device where AC electrical power can be connected.
2 AC outlet(s)

Features

Audible alarm(s): Alarms that make a sound when they are activated (set off).
Yes
Noise level: The amplitude level of the undesired background noise, usually measured in decibels (db).
40 dB
Output operation voltage (max): The maximum output voltage produced by the device.
253 V
Output operation voltage (min): The minumum voltage produced by the device during operation.
207 V
Input operation voltage (max): The maximum input voltage supported by the device.
290 V
Input operation voltage (min): The minumum voltage needed by the device during operation.
162 V
Output power: The power that the device can produce.
240 W
Output power capacity: The maximum power that the device can produce.
0.4 kVA
UPS topology: The two main UPS topologies are Double-Conversion True Online and Standby / Eco. Many quality-based considerations are involved when choosing the the optimal UPS for the job, like how they are coping with voltage disturbances.
Line-Interactive

Description

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Customer reviews

Customer questions

FAQ

How much does the UPS ONLINE USV-Systeme YUNTO Smile 400 cost, and is it available for purchase?

The price is 84.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 12.08.2026 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, Installment. All transactions are 100% secure and encrypted.

Can UPS ONLINE USV-Systeme YUNTO Smile 400 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the UPS ONLINE USV-Systeme YUNTO Smile 400 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 ONLINE USV-Systeme 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 ONLINE USV-Systeme 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: form factor, input operation voltage (max), input operation voltage (min), output power, output power capacity, ups topology, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.