English

-Do not use this appliance as a means to reduce your hours of sleep.The purpose of this appliance is to help you wake up more easily. It does not diminish your need for sleep.

-Always replace the lamp with a Philips 75W E27 SOFTONE softwhite 230V T55 (HF3451) or a Philips 100W E27 SOFTONE softwhite 230V T55 lamp (HF3462/HF3461).

-The appliance has no on/off switch.To disconnect the appliance from the mains, remove the plug from the wall socket.

-This appliance is only intended for household use, including similar use like in hotels.

General

-The appliance has been fitted with an automatic protection against overheating. If the appliance is insufficiently cooled (e.g. because the vents are covered), the appliance switches off automatically. Remove the cause of overheating, unplug the appliance and let it cool down for approx. 20 minutes.Then switch the appliance back on by plugging it in again.

-We advise you to set the light intensity for waking up to a setting between 9 and 20 (for the

HF3451 with 75W lamp) or between 7 and 15 (for the HF3462/HF3461 with 100W lamp).

These settings correspond to light intensity levels of 100 to 300 lux.The correct setting depends on your light sensitivity and will have to be determined by yourself. It is possible to select a higher or lower setting. See chapter ‘Using the appliance’ for more details. If light level 20 of the HF3451 is not high enough, we advise you to move the appliance closer to the bed.

-If you share a bedroom with someone else, this person may unintentionally wake up from the light of the appliance, even though this person is further removed from the appliance.This phenomenon is the result of differences in light sensitivity between people.

-If you start having trouble waking up again, this is possibly due to a decrease in the lamp’s light output that occurs after some time. In that case, you can increase the light level or replace the lamp.

-If the appliance is used in an industrial area and/or near a power station, it may occur that, under certain circumstances, the lamp goes off after it has come on.This does not have an adverse or harmful effect on the safe functioning of the appliance the next time it is used.

Electromagnetic fields (EMF)

This Philips appliance complies with all standards regarding electromagnetic fields (EMF). If handled properly and according to the instructions in this user manual, the appliance is safe to use based on scientific evidence available today.

Preparing for use

Installation

1Before first use, open the hatch in the back of the appliance (see chapter ‘Replacement’) and screw the lamp into the lamp holder.

2Place the appliance at 40-50cm from your head, for example on a bedside table (Fig. 4).

3Put the plug in the wall socket.

,The time on the display starts flashing and arrows appear above and below the time to indicate that the clock time has to be set (Fig. 5).

Note: If the display does not light up after you have plugged in the appliance, press the reset button on the bottom of the appliance.

Setting the clock time

1Use the ^ and the % buttons to set the time.

2Hold the button down longer to put the time forward or backward more quickly.

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Philips HF3451 manual English, Preparing for use
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HF3451 specifications

The Philips HF3451 is an innovative wake-up light designed to enhance the waking experience by simulating a natural sunrise. This product stands out in the market for its ability to mimic the gradual increase in daylight, helping users to wake up more gently and naturally.

One of the key features of the HF3451 is its ability to gradually increase the light intensity over a period of 20 to 40 minutes before the alarm time is set. This progressive light increase simulates the experience of a natural sunrise, easing people out of sleep and reducing the jarring effects of a traditional alarm clock.

In addition to its natural wakes-up feature, the HF3451 also offers a variety of sound options. Users can choose from different nature sounds, such as birds chirping or gentle streams, to accompany the light, providing a more serene waking environment. Furthermore, there's an FM radio feature that allows users to wake up to their favorite radio station, adding an extra layer of personalization to the waking experience.

The design of the Philips HF3451 is sleek and modern, fitting seamlessly into various bedroom aesthetics. It features a large, easy-to-read display that provides clear visibility even in low light. The adjustable brightness of the display ensures it does not disturb your sleep while maintaining a functional aspect.

Durability and energy efficiency are also important characteristics of the HF3451. The light utilizes LED technology, which is known for its long lifespan and lower energy consumption. This makes it not only environmentally friendly but also cost-effective over time.

Moreover, the HF3451 includes a snooze function that allows users to enjoy a few extra minutes of rest before the light and sound resume. Its intuitive design makes it user-friendly, with touch-sensitive buttons positioned for easy access.

Overall, the Philips HF3451 combines advanced technology with user-centric features to create a unique and beneficial waking experience. By seamlessly integrating light therapy and sound to enhance the waking process, it caters to those looking to improve their morning routine and overall well-being.
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