# Wake-up light Philips SmartSleep HF3531/01 — LED sunrise alarm, 300 lx, 7 sounds, 9 min snooze

**URL:** https://aio.lv/en/product--philips-hf353101--1938646
**Data updated:** 2026-03-07 11:02 (EET)
**Category:** Radios & Clock Radios
**Manufacturer:** Philips
**Manufacturer code:** HF3531/01
**EAN:** 8710103783367
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 146.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 121.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--philips-hf353101--1938646

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Philips SmartSleep HF3531/01 is a wake-up light alarm clock with LED sunrise simulation providing up to 300 lx light intensity. Features seven selectable alarm sounds, a 9-minute snooze for sound and light, and a 150 cm power cord. Typical power consumption is 16.5 W; input voltage 100–240 V. Compact bedside device for gentler wake-ups and morning light therapy.

## Long description

Philips SmartSleep HF3531/01 is a compact wake-up light alarm clock that combines LED sunrise simulation and selectable sounds to support a gentler morning routine. The device gradually increases light intensity up to 300 lx, shifting colours from soft dawn reds through warm orange to bright yellow, and offers seven natural wake-up sounds plus FM radio. Its display auto-dims in the dark, the top panel functions as a snooze/tap control, and the unit comes with a 150 cm power cord. Typical power consumption is 16.5 W and the input voltage range is 100–240 V.
Advantages
The Philips SmartSleep HF3531/01 provides gradual light-based wake-up that mimics a natural sunrise, reducing abrupt awakenings. With 20 brightness settings and a maximum of 300 lx, it accommodates individual light preferences for morning simulation or bedside illumination. Seven selectable natural sounds and FM radio give options for personalized audible alarms, while the integrated dimmable display and soft guide light maintain low disturbance at night. The device’s simple tap-to-snooze function supports quick temporary silencing of both light and sound for an additional 9 minutes.
Suitable for
People who prefer a gradual, light-based wake-up instead of abrupt alarms
Users seeking a compact bedside light with alarm and FM radio
Those who want adjustable brightness and multiple alarm sound options
Light therapy support for darker months or limited morning sunlight
Key specifications
Maximum light intensity: up to 300 lux
Light settings: coloured sunrise simulation with 20 brightness levels
Alarm sounds: 7 selectable natural sounds plus FM radio
Snooze: 9-minute snooze for both sound and light, activated by tapping the top
Power consumption: typical 16.5 W
Input voltage: 100–240 V
Power cord length: 150 cm
Weight: 1.15 kg
How to use
Place the Philips SmartSleep HF3531/01 on a stable bedside surface within reach of a power outlet and plug in the 150 cm power cord. Set your preferred wake time and choose either a natural sound or FM radio as the alarm. Adjust the light brightness from the 20 available settings to match your morning preference; the coloured sunrise simulation will start before the alarm time and gradually increase to the selected intensity. Tap the top panel to activate the 9-minute snooze when needed. The display will automatically dim in darker rooms to reduce nighttime disturbance.
Usage recommendations
For best results, position the unit within 30–60 cm of your face when lying in bed so the simulated sunrise provides effective gradual illumination. Use lower brightness levels if you are sensitive to morning light and increase settings gradually over several days to adapt. If using FM radio, pre-tune your preferred station and verify reception in the bedside location. Avoid covering the light source and keep the device on a stable surface away from water or heavy moisture.

## Specifications

| Feature | Value |
|---|---|
| AC adapter power | 12 W |
| Power | 16.5 W |
| Anti-slip rubber feet | Yes |
| Snooze button for sound and light | 9 min |
| Sunrise simulating process (0-selected intensity) | 40 min |
| Cord length | 150 m |
| UV free | Yes |
| Automatic brightness control | Yes |
| Smartphone/tablet remote support | No |
| Charging function | Yes |
| Number of brightness levels | 20 |
| Light intensity | 300 lx |
| Bulb technology | LED |
| Number of wake-up sounds | 7 |
| Power plug weight | 99 g |

### Clock

| Feature | Value |
|---|---|
| Snooze function | Yes |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 16.5 W |
| AC input frequency | 50 - 60 |
| AC input voltage | 100-240 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.15 kg |
| Height | 192 mm |
| Width | 199 mm |
| Depth | 146 mm |

### Other features

| Feature | Value |
|---|---|
| Type | Wake-up light |
| FM radio | Yes |
| Input voltage | 100-240 |
| Sunrise simulation | Yes |

### Features

| Feature | Value |
|---|---|
| Number of alarm times | 2 |
| Country of origin | China |

## FAQ

### How much does the Philips SmartSleep HF3531/01 wake-up light cost, and is it available for purchase?

The price is 146.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 29.06.2026 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 Philips SmartSleep HF3531/01 wake-up light be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Philips 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 Philips 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, 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.

### Where can I download the instructions for Philips SmartSleep HF3531/01 wake-up light?

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/1938646/53968834_large.webp