A high pressure sodium lamp consumes more energy at...?
A high pressure sodium lamp consumes more energy at...?
(OP)
A high pressure sodium lamp consumes more energy a the end of its life cycle??
This is something our supplier is telling us, we think he is only trying to sell more light bulbs.
please advise,
gonzalo
This is something our supplier is telling us, we think he is only trying to sell more light bulbs.
please advise,
gonzalo






RE: A high pressure sodium lamp consumes more energy at...?
Power = V x I
This is why old bulbs start blinking off then restriking. It is because as they heat up the required arc voltage goes up until the ballast cannot supply enough voltage and the arc extinguishes.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: A high pressure sodium lamp consumes more energy at...?
RE: A high pressure sodium lamp consumes more energy at...?
Keep in mind that you can't just go by the rated life on the packaging of the bulb for this. The burning cycle effects the rated life by virtue of the number of restarts per cycle. If you go 10+ hours between restrikes, there is little effect on the burning cycle. If you go 5 hours between restrikes, the life is reduced by 25% and at 2-1/2 hours the life is reduced by 50%.
JRaef.com
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: A high pressure sodium lamp consumes more energy at...?
Grrrr... one of my own pet peaves!