hunt4679
Senior Member
- Location
- Perry, Ohio
Has anyone used the universal voltage ballasts 120-277v on a 240 volt system? Will they work? Doing a high bay change out and found one building is all 240 volts.
Has anyone used the universal voltage ballasts 120-277v on a 240 volt system? Will they work? Doing a high bay change out and found one building is all 240 volts.
Has anyone used the universal voltage ballasts 120-277v on a 240 volt system? Will they work? Doing a high bay change out and found one building is all 240 volts.
What's the cold weather performance of the universal ones like? Do they fire the lamps OK? Come up to full output any faster?
The cold weather (slack/non)-performance is not coming from the ballast, but the tube itself.
True, but an electronic ballast can be lots smarter than an old hummer. I'd hope that the design engineers used the opportunity to, for example, run the tube harder when cold, until it warms up. Same kind of thinking re: extreme starting temps.
(Even with ordinary CF's you can do OK. The Metro here has 100's and 100's of '100 watt' CF's on outdoors platforms. While they provide nil illumination when first started on cold mornings, they are fine after 30-60 minutes. If WMATA paid more, I bet they could do even better.)
True, but an electronic ballast can be lots smarter than an old hummer. I'd hope that the design engineers used the opportunity to, for example, run the tube harder when cold, until it warms up. Same kind of thinking re: extreme starting temps.
(Even with ordinary CF's you can do OK. The Metro here has 100's and 100's of '100 watt' CF's on outdoors platforms. While they provide nil illumination when first started on cold mornings, they are fine after 30-60 minutes. If WMATA paid more, I bet they could do even better.)