IS300 and GS300 Xenon bulbs the same?

Checking on http://japan-parts.eu/, part numbers are as follows:

JCE10 IS300 – BULB, DISCHARGE HEADLAMP 90981-20007

JZS160 GS300 – BULB, DISCHARGE HEADLAMP 90981-20001

Visually they look identical.

Narva catalogue lists Narva 49301 is listed as fitting both applications.

http://xenonlight.com.ua/ lists a Philips D4R 42406 XenEco as fitting both applications.

JZS160/UZS161 TSRM – GS300 GS430 Service Manual

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Here

Is a 2nd gen. Lexus GS300 service manual with GS430 supplement sections. Although not included, it is very relevant for GS400 cars. Predominantly LHD, but has notes on RHD applications. The original menu system only works on old versions of internet explorer.

Includes:

  • Body Repair Manual
  • Electronic Wiring Diagram
  • New Car Features
  • Repair Manual
  • Supplementary Data Sheets

I don’t host these things, so if the link breaks contact me.