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1. Wide accommodation
for source voltage variation. From 40(V) to 90(V), the lamp power
variation is less than 1%.
2. Excellent
preheating. With the variation of 40(V) to 95(V) DC source
voltage,the filament preheating is all well done and the lamp life
can be increased for more than 4000 hours.
3.
Protection: When great current passes through the filament, heating
it to very high temperature and the lamp can not be started, the
power consumption of the circuits increases a lot and it is unsafe
because some parts of the circuit can be burned if the circuits
keeps working. The protection circuit can detect the unnormal
condition and make circuits stop working. |
