Ignitor 250W View larger

Ignitor 250W

New product

- Using for both high pressure Sodium vapor and Metal Halide lamps
- Standard phasing of the ignition voltage 60-90oel/240-270oel
- Ability to operate in humid and warm environment
- Minimized power consumption
- Maximum resistance against fire and heat
- Fully encapsulated; Moisture, saline and oil resistant
- Starting correctly in low input voltage condition

More details

More info

Rated voltage

220-240
Permitted input voltage

220+10 % V

220-10 % V

Mains frequency 50/60 HZ
Ignition voltage 4000-4500V
pulse width at 90% ignition voltage us <2
Number of pulses per half wave 2
Phase displacement of ignition pulses el  60-90_240-270
minimum distance from lamp m <0.1
maximum permitted lamp current A  5
Internal loses W <1.3
Maximum casing temperature 105 C
Minimum ambient temperature -30 C
weight 180 g

Ignitor

HID lamps consist of an arc tube (also called a discharge tube or "burner") within an outer envelope, or bulb. The arc tube may be made of either quartz or ceramic and contains a starting gas (usually argon), mercury, and MH salts. Traditional quartz MH arc tubes are similar in shape to mercury vapor (MV) arc tubes, but they operate at higher temperatures and pressures.

HID lamps start when their ballast supplies a high starting voltage higher than those normally supplied to the lamp electrodes through a gas mixture in the arc tube. The gas in the MH arc tube must be ionized before current can flow and start the lamp. In addition to supplying the correct starting voltage, the ballast also regulates the lamp starting current and lamp operating current.

HID lamp ignitors provide a brief, high voltage pulse or pulse train to breakdown the gas between the electrodes of an arc lamp. Pulses can range from several hundred volts to 5KV. Typical durations are in the µsec range. They are usually timed to coincide with the peak of OCV. If they are timed too early or too late, lamps may not start reliably.

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