The US Energy Department clarifies how to test light bulbs for efficiency

The US Energy Department has updated its rules for testing general service lamps, which are common light bulbs. The new rules clarify how to test bulbs that have extra features or are colored, and how to use specific ballasts or drivers for non-integrated lamps.

These are small technical clarifications, not major policy shifts. They make it easier for manufacturers to certify that their light bulbs meet existing energy efficiency standards. This means fewer delays and less confusion for companies trying to bring compliant products to market.