How to use LED lights
replace compact fluorescent lamp
Before you replace CFL, You
must know that what kind CFL you are using.
Buy 120V led compact fluorescent replacement,
Buy 230V led compact fluorescent replacement
About CFL: A compact
fluorescent lamp (CFL), also known as a compact fluorescent light or energy
saving light (or less commonly as a compact fluorescent tube), is a
type of fluorescent lamp. Many CFLs are designed to replace an incandescent lamp
and can fit into most existing light fixtures formerly used for
The replacement bulb calculation from incandescent
bulb to CFL was quite easy. The chart was clear:
25W = 4W
40W = 9W
60 W = 13W
75W = 17W
100W = 23/27W
Compared to general service incandescent lamps giving the same amount of visible
light, CFLs use less power and have a longer rated life. In the United
States, a CFL has a higher purchase price than an incandescent lamp, but can
save over 30 US$ in electricity costs over the lamp's life time.Like all
fluorescent lamps, CFLs contain mercury, which complicates their disposal.
CFLs radiate a different light spectrum from that of incandescent lamps.
Improved phosphor formulations have improved the subjective color of the light
emitted by CFLs such that some sources rate the best 'soft white' CFLs as
subjectively similar in color to standard incandescent lamps.
There are two main parts in a CFL: the gas-filled tube (also called bulb or
burner) and the magnetic or electronic ballast. An electrical current from the
ballast flows through the gas (mercury vapor), causing it to emit ultraviolet
light. The ultraviolet light then excites a phosphor coating on the inside of
the tube. This coating emits visible light.
An electronic ballast and permanently attached lamp tube in an integrated
compact fluorescent lamp.There are different standard shapes of tubes:
double helix, double-turn, triple-turn, quad-turn, circular, and butterfly.
Electronic ballasts contain a small circuit board with rectifiers, a filter
capacitor and usually two switching transistors connected as a high-frequency
resonant series DC to AC inverter. The resulting high frequency, around 40 kHz
or higher, is applied to the lamp tube. Since the resonant converter tends to
stabilize lamp current (and light produced) over a range of input voltages,
standard CFLs do not respond well in dimming applications and special lamps are
required for dimming service. CFLs that flicker when they start have magnetic
ballasts; CFLs with electronic ballasts are now much more common.
Integrated lamps combine a tube, an electronic ballast and either an Edison
screw or a bayonet fitting in a single unit. These lamps allow consumers to
replace incandescent lamps easily with CFLs.
Integrated CFLs work well in many standard incandescent light fixtures, reducing
the cost of converting to fluorescent.
Non-integrated bi-pin double-turn compact fluorescent lamp
Non-integrated electronic ballast for compact fluorescent lamps Non-integrated
Non-integrated CFLs have the ballast permanently installed in the luminaire, and
only the lamp bulb is usually changed at its end of life. Since the ballasts
are placed in the light fixture they are larger and last longer compared to the
integrated ones, and they don't need to be replaced when the bulb reaches its
end-of-life. Non-integrated CFL housings can be both more expensive and
There are two types of tubes: a bi-pin tube designed for a conventional ballast,
and a quad-pin tube designed for an electronic ballast or a conventional
ballast with an external starter.
A bi-pin tube contains an integrated starter which obviates the need for
external heating pins but causes incompatibility with electronic ballasts.
How to use LED replace CFL:
For the Integrated CFLs, You just plug in LED
For the Non-integrated electronic ballast CFLs, If
it is electronic ballasts, You must remove the ballasts and then plug in the LED
replacement bulb. Otherwise, The LED bulb will be fault. But if it is magnetic
ballast (means that with starter), You must remove starter, You can remove
ballast either not remove ballast, But if you remove ballast, The efficiency
will be more better and saving energy.
How to choose LED bulbs
The beam angle is very important< style="font-weight: normal; font-size: 10pt; color: black">
when you choose LED light bulbs, The angle can be 15 degree, 30 degree, 45
degree, 60 degree. The lumens will be less for wide beam angle LED light bulbs.
How to calculate the lumens? If it output 15~20 degree beam and cool white, For
multiple white LEDs, It is about 2~2.5 lumens each piece LED (note that
lumens will be less for wide beam angle LED light bulbs).
For high power LED, It is about 40~60 lumens each watt. Please note that the
lumens for warm white will be less than cool white. For example, It is about 1.5
lumens each piece LED.
White LED Color
Temperature Options (in Kelvin) : Warm white 3000K, Pure white 5500K, Cool
white 8000K. Viewing angle options: Narrow angle 15~20 degree, Medium
angle 40~60 degree, Wide angle 90~100 degree.
High power LED bulbs
compare with multiple white LED bulbs,
The cost of high power LED will higher than multiple white LED, The efficiency
of multiple white LED bulb will better than high power LED bulb. If you just
like the light output and price, Please choose our multiple white led bulbs. But
please note that the Life and Lumen Maintenance of high power led bulbs are
better than multiple white led bulbs.
If you still do
not understand, Please contact your local
Electrical Contractor service.
An electrical contractor includes all aspects of
renovation and new construction as it relates to the electrical system. This may
include rewiring, modifying existing wiring, upgrading electrical systems or
designing electrical systems for new buildings and construction