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Automotive Indicator Light Specification Example for Three-Wheelers: Heavy Duty

Source:Exhaust System Resonator / Time:2026-09-18

Automotive Indicator Light Specification Example for Three-Wheelers: Heavy Duty

This is a worked specification for automotive indicator light in a heavy duty programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The heavy duty version exists because the duty cycle on three-wheelers is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually inconsistent hardness between lots.

Automotive Indicator Light

Example specification

ItemAutomotive Indicator Light
ApplicationThree-Wheelers
VersionHeavy Duty
Base materialTempered Glass
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishas machined
MOQ2,000 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceREACH

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Tempered Glass, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Automotive Indicator Light example

Processes involved

  • die casting
  • laser cutting
  • gravity casting
  • precision stamping
  • heat treatment
  • shot blasting

Where this example applies

Programmes that run heavy duty most often specify this build for three-wheelers. Related applications include emergency vehicles, long-haul trucks, dealership service, assembly programmes, city buses.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

What testing is included?

Standard lots ship with dimensional and hardness reports. REACH documentation is issued with the shipment when your market requires it.

What is the minimum order quantity?

The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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