Qnuru’s Vector line of LED retrofit light bulbs are now available for use in luminaires directly powered by a 480V-to-277V step-down “buck” transformer, allowing specifiers to avoid the extra cost and inconvenience of installing pole- or ground-mounted step-down transformers at their service entrance. The Vector family of LED light bulbs fits all major commercial and industrial light fixtures and offers an average investment payback in 10 to 30 months, according to the company. qnuru.com