Be a source of light instead.

争取成为一个光源。

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Many things that burn are a source of light.

许多能够燃烧的东西都是光源。

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We can't see anything unless we have a source of light.

除非有一个光源，否则我们无法看到任何东西。

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Junior Seau was a source of light and life until injuries from football snuffed that out.

FORBES: When Playing Football Leads to Death

But while it lasted, work was a wellspring, a real source of light, the nurture of a beloved community.

NPR: Excerpt: 'Then We Came to the End'

At one end of the tube is a source of ultraviolet light and at the other a detector.

BBC: Hidden graves found using chemical 'sniffer' technology