### Question
How does IMPROVING ENERGY EFFICIENCY define probe-start metal halide ballast?


### Answer
Under *42 U.S.C. § 6291*, **probe-start metal halide ballast** is defined as:

> a ballast that—


(A) starts a probe-start metal halide lamp that contains a third starting electrode (probe) in the arc tube

#### Citation:
  - *42 U.S.C. § 6291*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A-Energy Conservation Program for Consumer Products Other Than Automobiles**

