Quartz Restrike vs. Pulse Start HID's
Quartz Restrike vs. Pulse Start HID's
(OP)
Can anyone help me in explaining the pros and cons of quartz restrike vs. pulse-start ballasts on HID lighting? The way I understand it, quartz restrike provides immediate low-level illumination during the HID's re-lamping period following a power outage via a separate quartz filament, while pulse-start ballasts essentially "shock" the HID lamp such that it re-lamps much quicker.
I would think that quartz restrike would be cheaper, more reliable, and would achieve the desired goal (immediate light) quicker than pulse-starts, which seem to be bulkier, more expensive, yield shorter lamp life, and still don't produce sufficient light as quickly as the quartz restrike. Don't pulse starts still take a matter of minutes to reach full illumination?
Thanks in advance!
I would think that quartz restrike would be cheaper, more reliable, and would achieve the desired goal (immediate light) quicker than pulse-starts, which seem to be bulkier, more expensive, yield shorter lamp life, and still don't produce sufficient light as quickly as the quartz restrike. Don't pulse starts still take a matter of minutes to reach full illumination?
Thanks in advance!






RE: Quartz Restrike vs. Pulse Start HID's
Mike
RE: Quartz Restrike vs. Pulse Start HID's
What would be simpler would be to get say 1/8th or 1/4 of your illumination from the fluorescent fixtures and the rest from the metal halide. This would allow you to get rid of the auxiliary relay. There is nothing that says that you MUST use only one light source and using auxiliary fluorescent may actually simplify metal halide fixture spacing.
That said, I have found that apertured reflectors for fluorescent fixtures allow MORE dirt to fall on the bulbs than nonapertured reflectors. You are better off to illuminate the ceiling by bounching the light off of the floor or with the light that leaks out the top of an open metal halide fixture reflector.
Mike Cole, mc5w at earthlink dot net
RE: Quartz Restrike vs. Pulse Start HID's
RE: Quartz Restrike vs. Pulse Start HID's
Mike
RE: Quartz Restrike vs. Pulse Start HID's
RE: Quartz Restrike vs. Pulse Start HID's
I already have battery packs for emergency lighting, so this is not an egress issue. It is only for resuming illumination after a power outage to resume production.
RE: Quartz Restrike vs. Pulse Start HID's
Here's an example: http:
Mike
PS Pulse start is available in HPS, but I think it's not as commonly used.