The phrase "at a relatively light" is correct and usable in written English.
It can be used when describing something that is not heavy or burdensome in a comparative sense.
Example: "The workload this week is at a relatively light level, allowing us to focus on other projects."
Alternatives: "at a fairly light" or "at a somewhat light".
Bars started offering a buffet of homemade hot and cold dishes with evening drinks – substantial enough to constitute a light dinner – at a relatively light price – often €10 for one drink and the buffet.
And although the firm's balance sheet shows debt at a relatively light £1.1 billion, Mr Ralfe reckons its lease commitments add the equivalent of another £1.5 billion to its debt.
Sitting relatively low at 30 inches, and at a relatively light 568 pounds, the Roadster's lowered bars, blacked-out power train and cast aluminum wheels -- 19-inch front and 18-inch rear -- are meant to appeal to a city rider who wants to look good blasting to the local bar or cafe.
Fellow soldiers and other supporters expressed relief at what they viewed as a relatively light sentence imposed by a judge, who said the soldiers' misconduct had to be balanced against the difficult circumstances in which they were operating.
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He was found guilty of willful disobedience & sentenced to dismissal and a year at hard labor, a relatively light sentence.
Staal made a surprise debut against the Flyers on Monday at Citizens Bank Park and logged a relatively light 12 minutes 41 seconds of ice time.
A peek at Newegg's books show a relatively light long-term debt load and over $70 million in cash, but the picture is not entirely rosy.
Mr. Lubimov exploited those differences in his account of Beethoven's Sonata No. 30 in E by using a relatively light touch at first, which yielded pure but pale timbres at the top end of the keyboard and tones with the hint of a quiver in the middle and lower ranges.
Featherstone said that she had been "brilliantly surprised" that the arts had received a relatively light 5% cut at the comprehensive spending review last month, and was fortunate that she was inheriting a theatre that was "seen as a vital part of Britain, and England's theatre scene".
The robot stands at 5'5″ and weighs only 187 lbs, a relatively light weight for a bot this size.
