The purpose of this research to control LED Lamps lightintensitydependent ofoutside
light intensity using electronic board Arduino Uno. control LED lamps analog voltage
achieved by pulse width modulation (PWM) digitally, studying LDR sensorspecific
ation,
designing light meter after founding the relationship between light dependent resistance
and light intensity measured by Lux,constructing a program using Arduino IDE for
microcontroller onArduino Uno that will maintain the desired light intensity selected.
Testing finally all the circuits after it has been completed circuit design and data are
collected. proving that it is possible to maintain the desired intensity of light and calculated
the average power consumption taking into consideration heat loss of LED lamps for 12
hours for tow values of light intensities 200,300 lux with outside light intensity and heights
1m and 1.5 m.It found that when the outside light intensity increases thecurrent intensityis
decreasing through LED lamps automatically and reduce power consumption. Thus, it can
be concluded using this board that it conserves energy.
The present study aimed to assess the influence of curing
distance on the loss of irradiance and power density of two curing
light devices of two different systems.
Two dental curing devices were used in this study,
Halogen unite (Chromalux 75) and light emitting diodes (LED)
(Bluedent smart),
