project at Philips Mohali Light Factory was detailed study of fluorescent and compact fluorescent lamps which include performing various tests on CFLs. The compact fluorescent lamp is now being used as an energy-saving alternative to incandescent lamps in homes. Compared with incandescent lamps, fluorescent lamps use less power for the same amount of light, generally last longer, but are bulkier, more complex, and initially more expensive than a comparable incandescent lamp a fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light. Unlike incandescent lamps fluorescent lamps use ballast to ignite the discharge tube, fluorescent lamps use external ballasts while CFLs have ballast fitted in lamp that is why fluorescent lamps are large in size as compared to CFLs There are two main parts in a CFL: the gas-filled tube (also called bulb or burner) and the magnetic or electronic ballast. Electrical energy in the form of an electrical current from the ballast flows through the gas, causing it to emit ultraviolet light. The ultraviolet light then excites a white phosphor coating on the inside of the tube. This coating emits visible light. CFLs that flicker when they start have magnetic ballasts; CFLs with electronic ballasts are now much more common.

1. Manufacturing of CFL & Tube Light
By:-
Raj Kumar Gupta
B.tech(EEE) 8th Sem
Roll no-100210722457
Under the Supervision
of
SK Sagar (Manager ,HR)

2. CONTENTS
Introduction.
Products.
A. CFL ( GENUINE,ESSENTIAL )
B. TUBE LIGHT (DOMESTIC, INDUSTRIAL )
Filament.
A. How to made filament ?

3. PHILIPS ELECTRONICS INDIA LTD
(MOHALI )
Mohali Light Factory (MLF) was incorporated as Punjab Anand
Lamps Industries Limited (PALI) in 1983 as a Joint Venture
Company in Mohali, a town situated near Chandigarh by
Koninklijke Philips Electronics N.V. Holland, Anand Group of
Industries & Punjab State Industrial Development Corporation for
manufacturing of fluorescent & incandescent lamps. Although it is
a manufacturing center for Lamps for Philips India, yet it was run
as a profit center having its separate entity till Dec. 2002. The
company was managed by a team of Managers headed by the
Managing Director who used to report functionally to Director &
Sr. Vice President, Lighting, Philips India and administratively to
the Board of Directors. However, over the years the Philips
increased its share holding to 93%. It has now been merged with
Philips India & renamed as Mohali Light Factory (MLF). It
continues to be supply center for Philips India, Lighting and is now
run as a cost center.

5.  Functional non-
covered Energy saving
lamp, with money saving
high quality light and
compact design. This lamp
is small enough to fit
neatly wherever you need
extra bright light at home,
enables easy replacement
of most incandescent lamp
all the way.

6.  Compact energy saving lamp enables fitting
neatly wherever extra brightness is needed.
 Save your money with long life-time and high
energy efficiency compare to incandescent lamp.
 Flicker-free start & Fast run up.

7. Long-Life and Energy saving alternative to
Incandescent lamps.
Fast run-up.
Recommended ambient temperature range to
ensure almost constant light output (>90%):
between 0 and +50° C.

8. Designed for incandescent lamp
replacement in consumer applications where
the lamp is not directly visible, specially
suitable for indoor applications in functional
areas.
Enclosed fixtures required for outdoor
applications.
Not suitable for use with dimmers or

9.  The Essential range is a standard stick-
shape compact fluorescent lamp, with the
lowest purchase price. It is available in 8W,
14W, 18W and 23W, with lumen equivalence
of 40W, 75W, 100W and 125W incandescent
light bulb. It is available in both 220-240V and
120-127V and able to operate under a wide
voltage range. It consumes up to 80% less
energy than the incandescent light bulb and
lasts for 3 years.

10.  Energy saving.
 Fewer lamp replacements.

11.  U-shaped energy saving lamp.
 High energy efficiency.
 Long-life alternative to incandescent
lamps.

12.  The Essential range is widely used to
replace incandescent light bulb at all kinds of
general lighting applications.
 It is not suitable for dimming and electronic
devices.

13.  fluorescent tube is a low
pressure mercury vapour gas
discharge lamp that
uses fluorescence to produce visible
light. An electric current in the
gas excites mercury vapour which
produces short-wave ultraviolet light
that then causes a phosphor coating
on the inside of the bulb to glow. A
fluorescent lamp converts electrical
energy into useful light much more
efficiently than incandescent lamp.
The luminous efficiency of a
fluorescent light bulb can exceed 100
lumens per watt.

14.  Linear Fluorescent Lamps are widely
used in hospitality and office spaces .
Shopping malls .
Industries.

15.  A tungsten filament in a low
pressure mercury gas discharge
lamp which emits electrons. To
increase electron emission a
white thermionic emission mix
coating is applied, visible on the
central portion of the coil.
Typically made of a mixture
of barium, strontium and
calcium oxides and other name
is electromagnetic powder .

16. TMD (TUNGSTEN MATERIAL DROWING
MACHINE)
Parts of TMD Machine
1. Main Heater.
2. Drum.
3. Lubricant.
4. Dies.
 Per day 60 lacks
filament wire
drawing .
DIES DIES

17. 990µ–345µ (800° temp)
345µ–164µ (800° temp)
164µ–54µ (775° temp)
54µ–23µ (720° temp)
23µ–17µ (690° temp)
17µ–15µ (690° temp)

19. GLASS TUBE CUTTING MACHINE
First starting is two types
of tubes used to make d/t.
One is 11.4 diameter (mm)
tube other is 9.00 diameter
(mm) tube. Small diameter
tube is used to make genie
lamps and big diameter One
used to make essential lamps.

20. Manual loading of full length lead free tube.
Glass tube rising on conveyor.
Glass tube loading on horizontal cutting.
Heating through burner.
First cutting into 3 pieces with wet cutting
wheel.
Heating through burner and then cut the glass tube.

21. GLASS TUBE BENDING MACHINE
 This process
uses bending
machine to bend
the tubes of
required length.
The input is
straight tube and
output is U shaped
tubes

22. Manual loading of cut glass into hopper.
 Transfer to bed by drum.
Preheating of glass tube with burner in two stages.
Heating of glass tube with burners in four stages.
Strengthening of glass tube with sodium dioxide by
burner .
Folding of glass tube and loading to turret head by
jaws.
Glass blow molding in u shape mould.
Annealing of bent glass tube with burner.
Cooling of bent tube with air

23. COATING MACHINE
Coating machine is
used for coating process.
In this process the tubes
are coated with
fluorescent powder .The
fluorescent powder is a
combination of phosphor
(calcium phosphate
aluminum oxide) and
polyethylene oxide and
dispersion agent.

24. Manual loading of bent glass.
Automatic transfer of glass tubes to heads.
Suspension dosing into bent glass tubes.
Controlled drying at suspension in coated shell across 10 positional
with hot air.
Drying at suspension in coated shell across 32 positions with hot air.
Drying of coated bent tubes at brushing and wiping area using burner.
Automatic unloading of coated bent tubes with pneumatic across two
pass.
Powder weight, hot air temp, suspension viscosity check every 2 hrs.
Suspension gravity checks each shift.
Transfer of shell to brushing machine.

25. Fusion machine is
used to fuse the two
tubes in such a manner
that they should be
leak proof.

26. Manual bending of 4w in sealed tube towards upper side.
Manual loading on chute provided on machine.
Automatic loading of sealed glass tube on outer side.
Height alignment from top of both glass tubes loaded
previously.
Preheating of fusion ends carried out with burner.
Heating of concentrated area carried out.
Blasting with nitrogen to produce holes at fusion end.
Glazing at fusion holes.
Kissing and stretching of both the tubes, to make hollow
bridge.
Cooling in ambient air.
Leak checking.
Unloading.