Figure 6.4. Biax L lamp.
There are many applications for
Biax L lamps:
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Task lighting.
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Security lighting.
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Uplighting.
-
General lighting in recessed and
asymmetric luminaires.
Four Primary advantages of Biax L
lamps.
-
Significant energy saving over
incandescent lamps.
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Excellent colour rendering.
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Design flexibility - more light
from a smaller size of lamp.
-
Higher wattage versions can be used
as alternatives to low wattage discharge lamps.
Double (D), Triple (T) and Quad (Q) Biax Lamps
These are more complex versions of the Biax S and L configuration, with either two or three
180 degree bends applied to one tube.
The main advantage is the further
reduction in size for the same power. In Figure 6.5 Biax S, Double Biax, Biax T and Biax Q lamps of
the same wattage rating are compared. The highest wattage 2D, T and Q lamps can also be used where
low wattage metal halide or mercury lamps may have been specified before.
Figure 6.5. Size comparison.
CFL Adaptor Systems
CFL Adaptor systems modify the standard Compact Fluorescent lamp for use in standard
incandescent sockets. The lamp simply plugs into the adaptor and complete assembly is inserted into
the incandescent socket (E27 or B22).
There are also adaptors where the
lamp is not replaceable. In some situation this form can be mofe convenient for maintenance.
A 15W Double Biax, for example, can
replace a standard 60W gls lamp and provide the same amount of light. Lighting energy costs are
reduced by over 70%.
Electronic adaptors improve lamp
efficacy, are lighter in weight and operate at high frequency.
Electronic Biax SA and 2D adaptors
have connectors so the compact fluorescent lamp can be replaced and the adaptor reused. Adaptor
life is approximately 32,000 hours.
Life / economics
To maximise the power saving and long life features of CFL lamps when used to replace
existing gls bulbs, they are best used where the lamp will be on for relatively long periods.
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