Sentences with phrase «required as ballast»
They also outlast equivalent compact fluorescent lightbulbs but use 50 percent less energy and skip the toxic mercury required as ballast.
https://www.scientificamerican.com/ Not exact matches
Although the Isle Royale boat is almost toy - sized compared with the freighters that ply the Great Lakes, Green contends the relatively simple chlorine treatment could be scaled up to the biggest boats on the lakes as an emergency line of defense that would be far stouter than the saltwater flushing — the only protection for the lakes until ballast treatment systems are required for all overseas ships, which likely won't be until 2021 at the earliest.
It also needs the hydraulics in the hood replaced, the xenon headlight has a malfunction (which requires the entire headlight assembly to be removed from the body of the car to change a LIGHTBULB, and if god forbid the ballast is bad, the bumper must be removed as well).