ELECTRICAL TRANSFORMER WITH WATTAGE SELECTION

Brand	Owner (click to sort)	Address	Description
KEYSELECT	HATCH TRANSFORMERS, INC.	7821 Woodland Center Boulevard Tampa FL 33614	ELECTRICAL TRANSFORMER WITH WATTAGE SELECTION FEATURE;KEY SELECT;
KEYWATT	HATCH TRANSFORMERS, INC.	7821 Woodland Center Boulevard Tampa FL 33614	ELECTRICAL TRANSFORMER WITH WATTAGE SELECTION FEATURE;KEY WATT;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method, apparatus, and system for compensating for lamp lumen depreciation. The method includes operating the lamp under rated wattage for a period towards the first part of operating life of the lamp. Operating wattage is increased at one or more later times. Energy savings are realized. The increases also restore at least some light lost by lamp lumen depreciation. The apparatus uses a timer to track operating time of the lamp. A few wattage changes made at spaced apart times can be made in a number of ways, including changing capacitance to the lamp, or using different taps on the lamp ballast.