architecture illumination

1. SWIMMING POOL
AND
UNDER WATER LIGHTING
GROUP
SHABNA ASHRAFV
SHAHNA ASHRAFV
SWATHI S JAYAKUMAR
RINSHADV RAHMAN
MOHAMMED FAIROOS
MITHUN THOMAS

2. LIGHTING ACCORDING TO THE SURROUNDING
•If your pool includes a spa, the ambiance and feel of this separate space can be
greatly enhanced by differentially coloured lighting from the rest of the pool.
•Water features such as fountains, waterfalls, curtain waterfalls, deck jets, or
wall features are all magically enhanced by lighting at night.
•Submerged lighting within the pool naturally enhances the rippling effect of
the moving water.
• In addition, thoughtful positioning of above ground spotlights, down lights, and
up lights – whether positioned in trees, on walls, or in the ground or deck
adjacent to the water feature – can greatly emphasise the dramatic effect at
night.
UP LIGHTS positioned under trees, shrubs, or at the base of walls or within
rockeries create highly effective mood lighting and evocative light and shadow
visual effects.
DOWN LIGHTING can be used to subtle effect to illuminate seating areas or
pool surround features such as gazebos or pergolas.

3. PLACEMENT AND POSITIONING OF POOL LIGHTS
• Aims to fully illuminate the swimming pool while at the same time, not casting a
glare into the house.
•Generally, for rectangular pools, the principal source of light is situated at the
deep end. It’s a good idea, therefore, not to have the deep end facing your house.

4. ACCORDIND TO IES ( ILLUMINATING ENGINEERING SOCIETY)

5. •The IES lighting requirement for recreational swimming pool is approx. 500 lux,
while the brightness standard raises to 1000 to 1200 lux for competition
aquatic center.
•High lux value is required for professional swimming pool because bright
lighting provides better environment for broadcasting & photo shooting. It also
means that the cost of swimming pool lighting is higher because we need to
install more luminaires on the ceiling to provide adequate illumination.
•Aside from the pool area, we also need to maintain sufficient brightness for
spectators.According to IES regulations again, the lux level of swimming pool’s
spectator area is around 150 lux.This level is adequate for the audiences to
reading text on the seat.
• Besides, it is observed that the other areas such as changing room, aisle and
chemical storeroom has lower lux value. It is because such the blinding lux level
lighting would irritate the swimmers or staff.
• For pools that are only used during daylight hours, minimal lighting may
be fine.
LOCATION AVAILABLE DF MINIMUM DF POSOTION OF
MEASUREMEN
T
LIMITTING
DAYLIGHT
GLARE INDEX
SWIMMING
POOL
5 2 POOL SURFACE 23

6. POSITION OF SWIMMING POOL LIGHTING (HOW TO INSTALL)
How should we place the ceiling lighting fixture for aquatic center?
•The flood lights should not be directly above the pool water. It is because this
direct lighting will produce significant glare, which affects the vision of swimmers
and audiences.
• Especially for backstroke swimmer, they will be irritated by the blinding lights
above the pool.
SOLUTION
•we might mount the lights surrounding the pool side, and
• use the oblique illumination to light up the swimming pool.
In this case, the glare due to water reflection will be reduced.
•use secondary reflection. It means the lights are pointing to the ceiling, and then
use the reflected light to shine the pool. It is one of the best ways as the ceiling
acts as a larger diffuser, so the illumination is more uniform. However, it is more
energy-consuming as part of the light is absorbed by the ceiling, so we will need
extra power and lumen of LED lights.

8. UNDERSTANDING THE DANGER CAUSED BY THE REFLECTION OF
WATER
•Reflection of light on the pool’s surface and on its surroundings.The glare can
cause discomfort or even dizziness to the pool attendants.
Potential solutions
•Reflection can be toned down with the installation of luminaires on the
perimeter of the pool and on the terrace.
•The issue can also be resolved by setting up a system that projects light both
upwards and downwards.
•It is important to examine the unified glare rating (ugr) of chosen lighting
products.
•The UGR is a method used to estimate the glare factor, as defined by the
international commission on illumination.Typically, a UGR measuring less than 10
is of no consequence. Conversely, a rating above 30 indicates a high degree of
brightness.

9. CRI
Color of the lights does matter inside swimming pool, the table below
summaries the recommended color temperature in different scenario.

10. SPECIAL CONSIDERATIONS FOR SWIMMING POOL LIGHTING
WATER-TIGHT DESIGN
All lighting fixtures in swimming pool should have water-tight design. Due
to evaporation of pool water, the relative humidity inside the swimming
pool stadium. If the luminaires are not water-proof, they will go off easily.
LAMP BODY MATERIAL
Our LED lights are made of aluminum alloy lamp body, which is
anticorrosive.The lens is made of polycarbonate instead of acryl because
polycarbonate is more durable.
SMDVS COB
Our swimming pool lighting fixture adopts SMD (Suraface Mount Design)
LED chips.The advantage of using SMD chip is that the glare can be
reduced by 50% when compared to COB (Chips On Board).

11. •It is often recommended that an analysis of the IP rating and an inspection of
the junction box be conducted.
•IP rating intl rating system , define levels of sealing effectiveness of electrical
enclosures against intrusion from foreign bodies and moisture
• In a pool setting, an IP rate greater than 65 is considered optimal

13. TWO TYPES OF POOL LIGHTING
• Flush lights – these are housed in, and lie flush with, the swimming
pool wall so that only the face-plate of the light is exposed. Generally,
flush lights tend to cast a narrower spread of light than Surface lights.
•Surface lights – these protrude from the pool wall and are mounted
on a bracket. Different brands protrude more than others.
Although they may, perhaps, look less neat than a Flush light, Surface
lights generally cast a broader spread of light.

14. RGB COLOR-CHANGING LED LIGHT
•Before the commencement of exciting swimming races, we can use
underwater RGB LED lights to create an astonishing light show.
• The color-changing lights produce 16 million colors.With the use of DMX
control system, the color of the lights can be changed automatically.
•Since the submersible lights are installed at the depth of 3 meters, the
lights should have IP68 waterproof rating.Aside from IP68,LED lights are
powered by <48VDC to guarantee the safety.

15. OPTIONS IN POOL LIGHTS
There are three main options when it comes to choosing the right lights for your pool
• Incandescent
• Halogen
• LED
INCANDESCENT
• least expensive
• The output of the light had a yellow shade, This caused even the cleanest pools to have a greenish
look.
• short life span, energy inefficient, flat ,harsh lighting
HALOGEN
• longer lifespan and used approximately 20% less energy
• these bulbs still used the filament technology to light the bulb and there was always a yellow haze when
the filament was heating
• expensive than incandescent but still had a shorter life span
LED
• Widely used because they have more brightness while using a small fraction of the energy required
on an incandescent bulb and 3-5 times more energy efficient than halogen.
• long-lasting and requires less maintenance cost. Disadvantage is that Repairs are not an option. Entire
light must be replaced.
• Unlike all the other options of lights, LED lights do not use a filament in order to produce light. It uses a
white or colored LED set. This ensures that there is no yellow shadow, there is no heat consumption
and it has an endless array of color options.
• An estimate of the lifespan of this light option is more than 50,000 hours.

16. TYPES OF POOL LIGHTS
FLUSH-MOUNTED UNDERWATER HALOGEN POOL LIGHT
• . these pool lights have the advantage of being perfectly in line with your pool
wall
• use more power and need more maintenance.
• Installation can be a lot more work with flush-mounted lights
• halogen lights are significantly cheaper than LED lights so you can save some
money here.
FLUSH-MOUNTED UNDERWATER LED POOL LIGHT
• it does not stick out further than the pool wall in your swimming pool.They are
mounted
directly inside the wall of your pool.
• flush-mounted underwater lights are rapidly gaining popularity over the
traditional
halogen lights
• A disadvantage of flush-mounted lights is that they can be very expensive to
install.

17. SURFACE-MOUNTED UNDERWATER LED LIGHT
• Easy to install.
• They can be easily retro-fitted to upgrade existing pool lights.
• Since they are not flush with the pool wall, they do stick out a little. Because
of this, they are more easily broken, especially if you have children. Children
tend
to use them as a step to climb out of the pool.
SURFACE-MOUNTED UNDERWATER HALOGEN POOL LIGHT
• They look great, provide ample lighting and are much cheaper than other
choices.
• They’re also easier to install than flush-mounted lighting and cheaper than LED
pool lights. However, they use much more energy than LEDs.
LED FLOOD LIGHTS
. LED flood lights light up large areas and they are very energy efficient.
POOL GARDEN LIGHTING
Pool garden lighting is used around the outside of your pool, such as in your
landscaping.
This lighting is not only practical but when they are properly planned and
strategically
placed, they can bring your garden to life.

18. FEATURE LIGHTING
LED or Halogen lighting can be used to highlight a feature of your pool
area or garden.You can opt to light up waterfalls, particular trees or
other landscaping features. LED lighting is more cost-effective to run
than halogen feature lighting, but you will have to spend a bit more
money on it upfront.
Halogen Flood Lighting
• Halogen flood lighting carries many of the same benefits as LED
flood lighting.
• It is also easy to install and affordable. However, you will find that
it is even more affordable up-front than LED lighting, although it
might not carry as many advantages in the long term.When
compared with LED flood lighting, halogen flood lighting doesn’t
last as long.You’ll also need to regularly change the bulb which isn’t
necessary with LED lighting.
SUBMERSIBLE AND FLOATING LED LIGHTING
Perfect for a party, these lights can be used to stunning effect. Normally
powered by batteries or even solar power, these lights come in all
different shapes, colours and sizes from red lanterns to white lilies.
They float either on the surface of the pool or are submersed.

19. ⚫ So, what is the purpose of the lighting? Basically you can break it down into
three categories:
• Task: that is the purpose of the general lighting
• Beautification: the objective of the pool, spa and landscape lighting
• Safety: for swimmers that is a combination of the general lighting from the
ceiling and the pool lighting
The most neglected lighting for public in- and outdoor pools and spas is the
underwater lighting, which is our primary focus.
Let’s use, as a Pool Lighting Case Study, the German example of
the Carpesol Aquatic and Recreational Centre.
⚫ The 19m Euro ($27m) project was opened mid last year to the public after
a 21 month construction period. It combines training pools with leisure pools
and saunas into a world where you can be active or just relax.
⚫ With 10 different pools and spas, 4 saunas and one steam bath, the centre
has something to offer for everyone.

20. ⚫ In order to create the right atmosphere, coloured RGB lighting was used
extensively within the pool, as well as throughout the surrounding areas in this
Pool Lighting Case Study.
⚫ With the availability of LED light sources, coloured light and light changes are
easily managed.
⚫ With DMX controlled lighting, it is easy to achieve the desired results, as the
controllers can programmed to set and recall static and dynamic scenes
⚫ Powerful 85W RGB underwater LED lights in the pool, smaller 28W ones in the
fountain and surface mounted spot lights in the upper half of the dome.
⚫ For the fountain and dome illumination different colours are used in comparison
to the pool and the surroundings to achieve a colour contrast.
⚫ Foris an easy task for the operator to adjust this with the help of the DMX
controllers.

21. ⚫ In this Pool Lighting Case Study for the large outdoor pool very
powerful 115W RGB LED fittings were used to illuminate the pool,
with the side effect that the stray light from the pool illuminates the
adjacent building.
⚫ The lighting designer chooses a wide light beam distribution and as
a result a homogenous illumination was achieved.
⚫ With the high wattage LED fittings the illumination levels are
elevated without any dark spots with the advantage in regards to
safety of a clear visibility of the swimmers at night.

22. ⚫ These pool and surface mounted lights and the colours are
controlled from a remote location and pre-programmed
scenes can be re-called.
⚫ One setting is a very slow automatic transition from one
colour to another. Another one is a static coloured scene
setting.
⚫ Important was the choice of the correct light beam spreads,
the suitable power of the light fittings and a control system
that allows changing the scene easily by the user.
⚫ This would not be possible with halogen lamp technology
that has previously been used, until some years ago.

23. ⚫ As a prerequisite, it is fundamental to choose quality fittings made of
316L stainless steel to avoid corrosion problems like tea staining, the
usage of quality special underwater cables, and a fitting design
which ensures long lasting water tightness.
⚫ These material requirements are not only important for the fitting
itself, but also for the installation housing.
In regions with high temperatures and pools with sea water, it can
even be necessary to use higher alloyed steels such as 904L, to
avoid discoloration of the 316L steel.
Often forgotten is, that with these long life expectancies of the LED
fittings the life of the connected electronics must match: quality,
long-life driver and controls are important as well.

24. ⚫ Another consideration for pool lights in public aquatic centres is the
location of the fitting in regards to the pool wall.
⚫ By using recessed, flush mounted fittings with a thin rim thickness
for the pool lights, the fittings cannot be used as a step by pool
visitors, avoiding common future damages to the fittings.
⚫ A similar solution is necessary for pools with moving floors which are
used for several different purposes.
A carefully planning of the positioning and light beam direction of the
lights in and above the water is essential to avoid glare to the visitors
by aiming away from the main public areas.
In regards to the lighting design, in general there are several
parameters you can choose from to achieve the desired lighting
concept as in this Pool Lighting Case Study

25. ⚫ • Light colours for white light: warm white, cool white or daylight
Daylight white is a bluish white and creates a crisp colour rendering; warmwhite on the
other hand is more yellowish and looks like a halogen lamp light. Cool white is in
between. In most cases the daylight white colour is chosen but depending on the pool
surroundings the others can be more appropriate.
• Static solid colours
A very popular static solid colour is blue because it resembles the ocean under bright
sun. However, green can also be suitable for some pools. In the past this was achieved
with Halogen lamps and colour filters, nowadays the LED fittings in most cases don’t
need a filter anymore. Without filters you get more light or use less power.
• Changing colours
RGB (red/green/blue), RGB-W (red/green/blue/white) or RGB-A (red/green/blue/amber)
is the LED technology for lighting fittings with changeable colours. Single lights or groups
of these lights can be set to static scenes or dynamic, playing a programmed scene.
With RGB-W you get a true white and all possible colours, with RGB-A you achieve a
fuller colour pallet with very saturated warm hues.
With the newly available LED fittings with multi-colours, you can produce hundreds of
colours from one fitting. The better light fittings can be controlled with DMX signals,
which is a standardized signal and therefore can be connected to any DMX controllers.
From simple wall mounted controllers, remote controls and to computer run controls,
everything is possible. In most cases, a choice of different set scenes and one or two
dynamic scenes is all that is needed. This can be easily integrated with the landscape
lighting and also effect lighting for common areas.

26. ⚫ • Light beam spreads: spot e.g. 10 degrees, medium flood 30 degrees or wide flood 60
degrees
With the available choices of different beam spreads, you can achieve very different
effects. With a couple of underwater spots with a narrow beam spread you can create
dramatic results with beams shooting through the water, or with flood lighting you are
able to design a homogenous glow of the pool without any dark spots. The result is very
different, dramatic with narrow beam spots or elegant with wide flood fittings.
• Oval beam spreads for shallow pools e. g. 45 degrees x 15 degrees
An oval beam spread is very useful for shallow pools. In this case, you use the 15
degrees in the vertical plane and the 45 degrees in the horizontal plane to avoid light
losses caused by the light hitting the floor and the water surface too early travelling
through the water.
• Multi optic spreads for high power lights to have flood and spot integrated in one light
A beam distribution with two superimposed beam spreads is very useful for big pools,
where you have to use high LED wattages. It is a light fitting with two different integrated
light optics in one light. A flood characteristic illuminates passing swimmers which are
close, whereas the spot reaches far into the pool.
It is not always necessary to use powerful lights to illuminate the entire pool. Especially
for smaller pools and spas one option is to install small lights which have only a
decorative purpose but don’t illuminate. In these cases 1 – 5W LED fittings is all what is
needed. In the same category of decorative pool lighting are waterproof LED strips with
IP67/68 ratings, more decorative than illuminating. These special LED strips are also
available in all whites and RGB. They can be used as a slim, linear, decorative element.

27. ⚫ A last word about pool safety and visibility: A common problem is
for indoor pools that the general lighting above the pool creates
reflections on the water surface. Therefore it is often difficult to see
below the water surface and identify swimmers which are in trouble.
A good pool illumination can drastically enhance the visibility of the
swimmers for visitors and life guards.
The lighting of aquatic centres and public pools is not limited to the
functional general lighting but the beautification of the pools, spas
and surroundings with a suitable illumination. The illumination plays
an important role for the overall appeal of the venue and can even
increase the safety for the swimmers