Indoor Furnishings User Manual

1. General information on Philips ‘TL’5 lamps
1.1 Introduction
‘TL’5 lamps are fluorescent lamps with a diameter of about 16 mm
and are designed to allow system miniaturization.
The latest technologies have been incorporated.The tri-phosphor
layer in combination with new coating technologies add up to a
high lamp efficacy and offer a virtually constant lumen level during
lamp life.The lamps have the colour rendering properties of the
/800 colours.
These lamps meet market demands for energy savings and more
freedom of design of luminaires.
The ‘TL’5 range can be split up in two ranges:the ‘TL’5 HE (High
Efficiency) and the ‘TL’5 HO (High Output) range.
The ‘TL’5 HE range was designed to reach highest efficiency with
direct lighting in offices and industry, while still fulfilling required
lighting levels.The ‘TL’5 HO range was added for those applications
where a higher luminous flux of the lamp can lead to a better
lighting effect and/or lower investment.
‘TL’5 lamps are especially designed for operation with electronic
gear (High Frequency operation).
Because maximum efficacy only is attained with HF operation,
50 Hz operation is not recommended or supported.
The luminous flux of ‘TL’5 lamps depends on how the lamps are
operated (ballast type/ambient temperature).
The ‘TL’5 range consists of the following types:
– ‘TL’5 HE 14W (2 ft) – ‘TL’5 HO 24W (2 ft)
– ‘TL’5 HE 21W (3 ft) – ‘TL’5 HO 39W (3 ft)
– ‘TL’5 HE 28W (4 ft) – ‘TL’5 HO 54W (4 ft)
– ‘TL’5 HE 35W (5 ft) – ‘TL’5 HO 49W (5 ft)
– ‘TL’5 HO 80W (5 ft)
and are available in various colour temperatures,ranging from
2700 K till 6500 K.
Features of ‘TL’5 lamp ranges
‘TL’5 lamps are a new generation of fluorescent
lamps which enable more compact and
efficient systems.
The lamps have the following characteristics:
• Lamp efficacy up to 104 lm/W for the HE range
• A high lumen output of 7000 lm and lamp luminance up
to 3,3 cd/cm
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for the HO range (at top lumens)
• Narrow diameter lamp of about 16 mm
• A virtually constant lumen level during lamp life due to
a tri-phosphor layer in combination with new coating
technologies
• Good colour rendering (/80 colours)
• A rated life of 20,000 burning hours (on preheat ballast)
• Low mercury dose
• Convenient lamp lengths enabling luminaires for easy fitting
into ceiling modules
• Maximum light output (with optimum ballast) reached at
temperatures which are more common in luminaires (35 °C)
These features offer in the market the following benefits:
• Miniaturization
The ‘TL’5 HE is a fluorescent lamp range with a diameter of
about 16 mm,which is a reduction of 40% compared to the
diameter of existing ‘TL’D lamps,having a 26 mm diameter.This
smaller dimension gives designers of luminaires more freedom
in the design of compact products.
• Energy saving
In the development of an optimum lighting system the ‘TL’5 HE
lamp range has been designed to perform up to 104 lm/W for
the lamp.This high gain in efficacy is used to reduce the power
consumption of the system,thus leading to an 8% energy
reduction compared with a ‘TL’D HF system and as much as
25% energy reduction compared with a ‘TL’D conventional sys-
tem,both in comparable installations and fulfilling the required
lighting levels.
• Cost reduction
The ‘TL’5 lamps have a high lamp efficacy and a lumen mainte-
nance of about 92% at 10,000 burning hours.This combination
means a long economic lifetime and low replacement and
maintenance costs.At a 3-hour switching cycle the lamps will
have an average rated lifetime of 20,000 burning hours if ope-
rated on appropriate HF warm-start ballasts. Moreover, lamp
lengths have been defined for easy fitting of the luminaires into
the ceiling module system,which means lower installation
costs.Due to the miniaturization material costs can be redu-
ced substantially.
With the use of ‘TL’5 HO lamps, with a lower lamp efficacy
compared with ‘TL’5 HE lamps, considerable savings on invest-
ment costs can be reached by its high luminous flux which is
up till 90% higher than for comparable HE types.
• More attention to the working environment
Small dimensions lead to attractive and innovative design and
new challenges for luminaire optics.Increased opportunities for
using the design are offered by single mounted and suspended
luminaires as a marketing element.HF ballasts, principally, make
dimming,smooth start and flexible lighting possible,so more
comfort for the end-user.
• More environmental awareness
The high efficiencies of the lamp and electronic ballasts contribu-
te to the environmental awareness by energy saving.Life Cycle
Assessment studies show that at least 99% of light sources’
contribution to pollution is caused by their energy consumption
during lifetime.The ‘TL’5 lamps contain the /80 New Generation
phosphor technology.A spin-off from this technology is a reduc-
tion of mercury needed for the lamp to operate efficiently.Also
material reduction by miniaturization in the total chain (lamp,bal-
last,luminaire,packing material,transport costs,stocking costs)
and increased life contribute here.
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2000-11-07