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SPECIFICATION SUBMITTAL
rev eco-220-240-1b 1.10.02
220/240 Volt,T8 Linear and
T5 Twin Tube Lamps
10% Lighting Management Electronic
Fluorescent Dimming Ballasts
Eco-10
TM
Attention Specifiers
Application Notes
Per
ceived vs.Actual Light
An important aspect of lighting control is the
difference between measured and perceived light
levels. For example, a light dimmed to 10% output
is perceived by the eye as 32%. A light dimmed to
1% is perceived as 10%. his “Square Law”
phenomenon takes advantage of how the human
eye functions to achieve significant energy savings,
while improving the visual environment.
Power vs.Light
The nearly linear relationship between fluorescent
light levels and power consumption saves energy
proportionately as lights are dimmed.
Specifications
Rapid-Start Sockets Must Be Used
Rapid-start type sockets must be used to provide
proper lamp filament heating and dimming
operation.
Quality knife-edge sockets are recommended for
new and retrofit applications to ensure positive
lamp/pin contact.
Mixing Ballast and Lamps per Cir
cuit
For optimal dimming performance,do not mix
ballast lamp types (T4, T5, T8, or T12) on a given
circuit. Mixing lamp lengths (48 in., 36 in., 24 in.,
etc.) within a single lamp type is permissible and
will not diminish dimming performance.
Do not mix ballast types on a given circuit (i.e., mix
Hi-lume with Eco-10 or Tu-Wire).
Number of Ballasts per Contr
ol
For maximum number of ballasts per control,divide
control’s current capacity by the individual ballast
current. Certain controls also have a specific
number of ballast maximums.
