Author Topic: Will a superimposed ignitor destroy probe start metal halide lamps?  (Read 739 times)
WorldwideHIDCollectorUSA
Member
*****
Offline

Gender: Male
View Posts
View Gallery

HID, LPS, and preheat fluorescents forever!!!!!!


Worldwide HIDCollectorUSA
Will a superimposed ignitor destroy probe start metal halide lamps? « on: April 23, 2025, 04:28:21 PM » Author: WorldwideHIDCollectorUSA
After seeing that some people on here often say that high voltage ignitors with pulses of at least 2kV to around 5kV would destroy the starting probes and starting resistors of probe start metal halide lamps during hot restrike, I have seen that other collectors also say that superimposed ignitors do not destroy the starting probes and resistors of probe start metal halide lamps during hot restrike. I wonder where people get the idea of high voltage ignitors destroying the starting probes and starting resistors of probe start metal halide lamps during hot restrike. Would it be the case that semiparallel ignitors would be more likely to destroy the starting probes and starting resistors of probe start metal halide lamps than superimposed ignitors?
Logged

Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

Medved
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: Will a superimposed ignitor destroy probe start metal halide lamps? « Reply #1 on: April 25, 2025, 01:15:01 AM » Author: Medved
I don't think there will be much difference in the probability to destroy the lamp (not only the resistor, it may cause flashover and arc in the outer, destroying the assembly there).

It mainly depend on how high voltages the inner components can survive vs how high voltage the hot arctube needs to ignite. Because once the discharge in the main arctube ignites, the high voltage stress is over, it will just short out the ignitor output.
And the ignitors are not capable of delivering any significant current on the HV side, they are just able to provide some initial ionization, the high capacitive load on "long range" (designed to work with long wiring to the lamp) ignitors deal with this load by using longer time pulses, so the discharge still shorts it out effortlessly once ignited...
Logged

No more selfballasted c***

Print 
© 2005-2025 Lighting-Gallery.net | SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies