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3. ASSEMBLING THE MICROSCOPE
3.1 Verifying input voltage
The automatic voltage selection works with a broad range of settings. However, always use a
power cord that is rated for the voltage used in your area and that has been approved to meet local
safety standards. Using the wrong power cord could cause fire or equipment damage.
If using an extension cord, use only a power supply cord with a protective earth (PE) wire.
In order to prevent electric shock, always turn the power switch on the power supply off before
connecting the power cord.
Electrical Specifications:
A. Halogen
Input: 90-240V~, 80VA, 50-60Hz
Bulb: 6V 30W Halogen
Fuse: 250V T2.5A (If the original fuse is blown, please replace with specified fuse)
B. LED module
Input: 90-240V~, 80VA, 50-60Hz
LED: 3.4V 3W
Fuse: 250V T2.5A (If the original fuse is blown, please replace with specified fuse)
LED module high color temperature: 6000 ± 300k
LED module low color temperature: 4500 ± 300k
3.2 Illumination
3.2.1 Halogen lamp
The quartz halogen bulb, used as a light source, has higher luminance and color temperature than
conventional tungsten bulb. The luminance is approximately four times greater.
As long as the bulb voltage is kept constant, the halogen bulb maintains the same level of
brightness and color temperature regardless of whether it is new or nearing the end of its life.
3.2.2 LED
The LED module is specially designed to be inserted into halogen bulb socket directly converting
halogen illumination to LED illumination. LED is more economical and environmental friendly and
combines the advantages of low heat and long life span.