Effective January 1, 2009: Metal Halide 150w-500w fixture production will meet higher efficiency standards (88% for pulse start, 94% for probe start).
•This will virtually eliminate the manufacture of probe start fixtures
•One exception is significant: The 150w wet location fixtures (as rated per NEC 2002, section 410.4 (A)).
•175w wet location rated fixtures will thus be replaced by 150w
Energy Advantage
With pulse start technology you can use lower wattage fixtures for equivalent lumen output of higher wattage traditional probe start fixtures:
•350w or 320w pulse start fixtures can replace standard 400w probe start fixtures
•150w pulse start fixtures can replace standard 175w probe start fixtures
What happens to Probe Start?
The law allows manufacturers and distributors to sell all probe start MH fixture inventories produced before January 1, 2009.
•Ballast and lamp suppliers will continue to build components for replacement business.
•Replacement ballast and lamp business will not be impacted.
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