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What Makes an OE Quality Gas Discharge Bulb? Part2

August 15, 2013

Last week we discussed how the material quality of Filament (ThO2 vs. pure tungsten) and Metal Salt (Scandium and Sodium Iodide vs. low quality salts) influence bulb quality. Hope you find the information we sharing is helpful.
This week we are continuing our talk about bulb structure.
GetAttachment

 

1. Glass Chamber

E-MARKD HID BULB

– Features :

  •  Inner chamber made of high temperature glass and an outer chamber sealed by a vacuum made of lower temperature glass but high UV blocking function.

– Effects:

  • The outer glass acts as a UV filter to remove the large amounts of UV radiation.
  • protect health & safe

 

NON-CERTIFIED HID BULBS

– Features :

  •  Low quality outer shielding or even normal glass with mercury to significantly save costs.

– Effects:

  • The UV radiation can blind you and/or give you a horrible burn.
  • Headlight projector becomes too hot and damagedresulting in uneven beam or even fire.

 

2. Arc Tube

E-MARKD HID BULBS

– Features:

  • Hexagon-shaped arc tube with flat sides

Hexagon-shaped arc tube

– Effects:

  • Confine arc bending to the standard
  • Ensure correct beam pattern as OE bulbs’

NON-CERTIFIED HID BULBS

– Features:

  • Oval-shaped arc tube with arch sides

Oval-shaped arc tube

– Effects:

  • Arc bends too much
  • Results in glare as retrofit HID kits

 

3. Base Contact Solder 

E-MARKD HID BULBS

– Features:

  • Nicely centered and formed

Nicely centered and formed

– Effects:

  • Works perfectly without problem

NON-CERTIFIED HID BULBS

Features:

  • Poorly centered & formed

Poorly centered & formed

Effects:

  • Tends to spark to burn the OE ballast socket

Tends to spark to burn...

 

In conclusion, Non-certified HID cheap bulbs not only have less light output, less stable arc, less lifespan, etc., but also severely endanger health and safety.

Prepare yourself to pay between US$50 and US$100 for a certified/quality HID bulb.  It will definitely cost you much more, both substantially and invisibly, afterwards when you go for cheap and crap bulbs in the very beginning.  Price cannot be the only factor to consider when buying, especially buying something relative to health and safety.

 

Reference:

http://priuschat.com/threads/not-all-hid-bulbs-are-created-equal.101472/

http://www.ebay.ca/itm/Genuine-Philips-Ultinon-D2R-85126WX-6000K-Xenon-HID-Bulbs-200-Made-Germany-/300705116786

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From → Auto HID Lights

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