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Which shortcomings do high-handed sodium lamp have?

Hits:  UpdateTime:2015-06-16 17:06:52

Reply: advantage: light efficient is high; ipurple outside radiate to little; the penetrate fog is good; lifespan is long.
Shortcoming: the prominent color differs; start the tension is high; the cost is high.


TAG:   shortcomings do high-handed sodium lamp