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5-2. Specification Descriptions
5-2-1. Brightness
The brightness depends on the ambient temperature. The light may be dim if the ambient
temperature is extremely low.
5-2-2. Continuous operating time
Continuous operating time means the continuous lighting time when using a fully charged battery.
It varies in accordance with the frequency of use, battery capacity and other factors. Accordingly,
the continuous operating time values in the above table are intended for reference purposes only.
5-2-3. Specification of fluorescent lamp
The Model UB 18DSL is equipped with a natural (EX-D), compact fluorescent lamp equivalent to
FPL 9W. Use the fluorescent lamp specifically designed for the Model UB 18DSL (code number
323339, model FPL9 EX-D).
5-2-4. Automatic LED switching function
A fluorescent lamp extinguishes suddenly if the battery voltage becomes low. To prevent this, the
Model UB 18DSL automatically switches lighting from fluorescent lamp to LED when the battery
voltage is decreased to about 14 V. Please turn the switch off and charge or replace the battery
immediately.
The LED will be also dim by the overdischarge protection circuit of the lithium-ion battery if the
battery voltage becomes 10 V.
5-2-5. 14.4-V slide-type lithium-ion battery (sold separately) is applicable.
The Type BSL 1430 lithium-ion battery is equipped with the overdischarge protection circuit,
overload protection circuit, and voltage monitoring circuit for each cell to prevent shortening of the
battery life due to overdischarge (overuse) or overcharge (excessive charging) of the battery.
The number of charging /discharging is about 1,500.
Precautions for use of the Type BSL 1430 lithium-ion battery
The Type BSL 1430 lithium-ion battery is equipped with a protective function that automatically
stops output to extend the battery life. The LED may dim automatically when the battery voltage
becomes 10 V even if the switch is set "LED." This is because the protective function is activated.
The battery is not faulty.
Please instruct the customers on the above precautions.
-4-
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