Quote:
Originally posted by mr294
400 5001492 UHI-S400AQ/10/CWA 10000k M59
400 5000760 UHI-S400AQ/10 10000k M135*
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Whats the difference between these two 400W 10k bulbs?
This pulse start vs. probe start stuff is confusing, especially when companies like Ushio seem to have bulbs of each type.
Charlie, see if HelloLights will guarantee the bulbs will fire on your ballast and allow you to return them if they don't.