Philips HF3421 User manual
HF3421, HF3420
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English 6
Dansk 22
Deutsch 38
Français 57
Italiano 75
Nederlands 93
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Svenska 143
English
Introduction
Congratulations on your purchase and welcome to Philips! To fully
benefit from the support that Philips offers, register your product at
www.philips.com/welcome.
Read this user manual carefully before using this Philips appliance.
Intended use
This Philips appliance EnergyUp Intense Blue is intended to make
people feel more energetic, to adjust circadian rhythms and to
provide relief from the winter blues. Medical intended use of this
appliance is to treat winter depression or SAD (seasonal affective
disorder). Treatment of SAD must always take place under medical
supervision.
Light - a natural energizer
Today's busy modern lifestyles demand peak performance all day
long. Even the fittest person suffers energy dips, particularly when
deprived of natural daylight, such as in an office in winter. Daylight is
essential to well-being, keeping fit and feeling energized throughout
the day – just like healthy nutrition and regular exercise. Philips
EnergyUp Intense Blue mimics the natural energizing power of
daylight on a bright sunny day. It stimulates special receptors in the
eye to trigger the body’s natural response to sunlight. This helps you
to fight energy dips, to feel more energetic, active and alert, and to
improve your mood.
Circadian rhythms and sleep patterns
The human body uses light cues, such as those provided by the sun,
to time certain internal functions. Properly timed rhythms regulate
energy, mood, sleep, appetite and digestion. These daily internal
cycles, called circadian rhythms, sometimes fall out of sync with
nature, which can have impact on our well-being. Nature’s cues no
longer govern our modern lifestyle. Our day no longer starts at sunrise
and ends at sunset, working days are getting longer, and many
people work in shifts. Moreover, our activities often extend well into
the night. Many people tend to get too little sleep during the week,
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which diminishes their energy levels during the day. Using Philips
EnergyUp Intense Blue at the right time of day can help you establish
and reinforce regular sleep patterns.
Light via eyes
Research shows that a special photoreceptor in our eyes is
responsible for regulating our energy, mood and sleep/wake cycles.
This receptor responds mostly to the blue light of the summer sky. We
do not get much of this light in autumn and winter. Most indoor light
does not provide enough of this essential color. This appliance helps
you to be at your best by delivering the wavelength, colour and
intensity of light to which our body responds most efficiently.
Winter blues
Lack of light during the darker winter months causes many people to
experience a noticeable drop in energy level and low spirits as
autumn sets in. These symptoms, known as 'winter blues', may cause
you to feel low, listless and fatigued for weeks or even months. This
affects both personal performance and mood. Blue light therapy is a
successful method to fight these winter blues symptoms. It provides
your body with summer vitality throughout the dark winter months.
General description
1 Light panel
2 Socket for small plug
3 Standby button and light intensity control
4 Adapter HF10
5 Small plug
Important treatment information
Read this user manual carefully and always adhere to the treatment
instructions.
Contraindications
The following conditions may be contraindications for use of this
appliance:
- bipolar disorder
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- recent eye surgery or a diagnosed eye condition for which your
doctor advised you to avoid bright light
- use of photo-sensitizing medications (e.g. certain antidepressants,
psychotropic drugs or malaria tablets), as it may cause side effects
(e.g. skin irritation)
If any of the above conditions apply to you, always consult your
doctor before you start using the appliance.
Possible reactions
Possible adverse reactions to light from this appliance are relatively
mild and of a transient nature. They may include:
- Headache
- Eyestrain
- Nausea
Measures to avoid, minimize or alleviate these adverse reactions:
- Always use the appliance in a well-lit room.
- Reduce the light intensity if these reactions occur.
- Stop using the appliance for a few days to make the reactions
disappear and then try again.
Important safety information
Read this important information carefully before you use the
appliance and save it for future reference.
Danger
- Keep the appliance and the adapter dry and away from water. Do
not place or store it over or near water contained in a bathtub,
washbasin, sink etc. Do not immerse it in water or any other liquid.
This may affect the safety of the appliance.
- The adapter contains a transformer. Do not cut off the adapter to
replace it with another plug, as this causes a hazardous situation.
- Do not use the appliance or the adapter if it is damaged.
- If the adapter is damaged, always have it replaced with one of the
original type in order to avoid a hazard.
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Warning
- If you suffer from depression, consult your doctor before you start
using this appliance.
- Do not use the appliance in a room where there is no other light
source, as this may cause eyestrain. Use the light of this appliance
as an addition to the normal light (sunlight, electric light) in your
home.
- Do not look straight into the light too long, as this may be
uncomfortable to your eyes.
- Do not use the appliance where its light may hinder you or other
people during the performance of essential tasks such as driving
or operating heavy equipment.
- This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety.
- Children should be supervised to ensure that they do not play with
the appliance.
- Only use the appliance in combination with the adapter supplied.
- Do not modify the appliance and its accessories.
- Stop using the appliance if it is damaged in any way. Do not look
directly at uncovered LEDs, as their light is very bright. If repair is
needed, consult chapter 'Guarantee and support' for information.
- Never open the appliance to prevent electric shock, finger burns or
temporary black spots in the eye.
- Do not use the appliance in the presence of flammable anesthetic
mixtures with air, oxygen or nitrous oxide.
Caution
- Allow the device to acclimate to the prescribed operating
conditions before using it after storage or transport. Guideline is
one hour per 10°C temperature difference. For cold to warm
transition, be sure that adapter and appliance are dry (non-
condensing) before operating.
- Do not use the appliance outdoors or near heated surfaces or heat
sources.
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- Use the appliance in vertical position with the stand in place. Do
not use it in horizontal position without the stand or cover it, as
this might cause the appliance to overheat.
- Do not place heavy objects on the appliance, the adapter or the
cord.
- Do not use the adapter in or near wall sockets that contain or have
contained an electric air freshener to prevent irreparable damage
to the adapter.
- When you remove the adapter from the wall socket, do not pull at
the cord but grasp the adapter directly to avoid cord damage.
- When you remove the small plug from the appliance socket, do
not pull at the cord but grasp the small plug directly to avoid cord
damage.
- The appliance has no on/off switch. To disconnect the appliance,
remove the plug from the wall socket. The adapter must remain
easily accessible at all times.
Safety and compliance
- This Philips appliance complies with all applicable standards and
regulations regarding exposure to electromagnetic fields.
- This is a Class IIa medical appliance. It meets requirements of
Medical Device Directive MDD 93/42/EEC and 2007/47/EC for
medical appliances.
- This is not a general illumination product.
Electromagnetic compatibility (EMC)
Portable and mobile radio frequency communication equipment,
such as mobile phones, cordless telephones and their base stations,
walkie-talkies, and wireless home network devices (routers), can
affect the Philips EnergyUp. They must therefore not be used in close
proximity to the EnergyUp. If this cannot be avoided, the EnergyUp
must be observed to verify normal operation. If abnormal
performance (e.g. loss of functionality, light inconsistency, flicker) is
observed, additional measures may be necessary, such as re-
orientation of the radio frequency communication equipment or the
EnergyUp (see section 'EMC information' in chapter 'Specifications' for
more details).
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General
The adapter is equipped with an automatic voltage selector and is
suitable for mains voltages ranging from 100 to 240 Vac, 50/60 Hz.
Using the appliance
When to use
Knowing at what time to use the Philips EnergyUp is essential. It may
mean the difference between feeling better in a few days instead of
weeks and between experiencing benefits or experiencing none.
Follow these guidelines to understand how light affects us and when
to use the Philips EnergyUp for the best results.
Duration
Most people experience benefits if they use the appliance 20 to 30
minutes each day. It is safe to use the Philips EnergyUp longer,
provided you do so at the correct time of day. You may notice some
energizing effects of light immediately. Other effects become
noticeable after several days of regular use.
Indoor life and energy dips
If you spend a lot of time indoors with little daylight and artificial light,
you can experience the energizing effects of the Philips EnergyUp
very quickly after you switch it on.
Many people experience a natural dip in the afternoon. The Philips
EnergyUp can help you counteract this dip.
Winter blues
If you experience lower energy levels, an increased need for sleep,
and a lower mood in the dark season compared to spring and
summer, use the energy light for 20-30 minutes a day. Preferably use
it in the morning to help you start the day. You may also use it later
during the day, but do not use it in the last few hours before bedtime.
If you do, the light could delay your sleep and make you even less
energetic the next day.
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Winter depression
If your seasonal mood swings are more severe and you suffer from
depression, consult a therapist and only use light therapy under
supervision. Your therapist may prescribe 30 minutes of treatment
per day at level 1 or 2 over several weeks.
Sleep patterns
- Morning persons tend to wake up early in the morning and usually
find it difficult to stay awake in the evening. If you want to get
more out of your evening, avoid bright light directly after waking
up and use the Philips EnergyUp in the evening.
- Evening persons find it difficult to get up in the morning and are
full of energy in the evening. If this applies to you, you need
morning light. Use the Philips EnergyUp within the first 1-2 hours
after you get out of bed. Avoid bright light in the last 4 hours
before bedtime. Daily use of the Philips EnergyUp in the morning
may help you establish a regular sleep pattern that allows you to
function better in the morning.
Note: If your desired wake-up time is less than six hours after your
normal bedtime, do not use the Philips EnergyUp immediately after
you wake up. This could give your body a signal that is opposite to
the one intended.
Recommended times to use the appliance
When to use
Energy need
because of: Morn
ing Lunchti
me After
noon Evening
Lack of daylight
indoors +++ +++ +++ ---
Being a morning
person --- + ++ +++
Being an evening
person +++ ++ + ---
An afternoon energy
dip + +++ +++ ---
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