GOB Protection Quote Scope When Only Some Pixel Pitches Have It

Quick answer

Treat GOB as a pitch-specific quotation line, not a series-wide feature. In the supplied EagerLED pages, EA640H1 documents GOB on P1.25, P1.53, P1.86 and P2, while P2.5 uses standard SMD2020; EA250WH5 documents GOB on P1.25, P1.56 and P1.95. Each quote should name model, pitch, module type, GOB status, matching spare modules, cleaning method and surface-repair scope, with price still per project.

Sources used: EA250WH5 specs; EA640H1 specs; EA600COB3 specs; EA1000H8 specs

Why GOB Is a Pitch-Level Quotation Line

The practical budget question is not whether a cabinet series is GOB or SMD; it is whether the exact pitch and module in the quotation are GOB-protected. GOB (glue-on-board) fills the gaps between the LEDs with a clear protective compound, which makes the module surface more resistant to knocks, dust and cleaning. On the EA640H1, GOB is used on P1.25, P1.53, P1.86 and P2, while P2.5 uses a standard SMD2020 module. That single-series split is enough to change the module line, spare line and cleaning line in the quote. For a broader technology frame, see GOB vs SMD.

The same pattern appears in a shallow fixed wall. The EA250WH5 lists seven pitches from P1.25 GOB to P3.91, but the supplied passage names GOB specifically for P1.25, P1.56 and P1.95. Its P1.25, P1.56 and P1.95 GOB options are described for lobbies, meeting rooms and control rooms watched from about 2 m, while P2.5 to P3.91 suits an LED display wall viewed from about 3 m. A quote that treats the whole series as GOB would therefore hide a material pitch-level difference.

Documented GOB Boundaries for EA250WH5 and EA640H1

EA640H1 is documented as a 640 × 480 mm front-service indoor LED wall in P1.25 to P2.5. Its GOB pitches begin at P1.25 and continue through P1.53, P1.86 and P2; P2.5 is the standard SMD2020 exception. Every cabinet carries six 320 × 160 mm modules, and the source advises ordering spares in the same pitch to keep brightness and colour even. For a close-view comparison, EA250WH5 GOB vs SMD pitch selection depends on the exact pitch and viewing distance.

EA250WH5 is a 30 mm ultra-thin indoor LED display wall with full front service, direct HUB modules and six cabinet formats. Every format uses the same 250 × 250 mm module, and the series runs from P1.25 GOB to P3.91. The specific GOB pitches are P1.25, P1.56 and P1.95. Because brightness also changes by pitch—600 cd/m² on P1.25 and P1.56 and 750 cd/m² from P1.95 to P3.91—the pitch and module type should sit on the same quotation line rather than in separate notes.

GOB Pitch Quotation Decisions and Evidence to Request

What Each Quotation Line Should Name

A GOB-inclusive quotation should identify the exact model, pixel pitch, module type, cabinet format and whether GOB applies to that pitch. For EA640H1, that means a line for P1.25, P1.53, P1.86 or P2 that states GOB, plus a separate P2.5 line that states standard SMD2020. For EA250WH5, it means a line for P1.25, P1.56 or P1.95 that states GOB, and separate lines for the P2.5 to P3.91 options where GOB is not the documented module type. Use the same line structure when you compare LED screen quotes, so a lower total does not simply omit the protected pitch.

The quotation should also state cabinet quantity, control system and spare modules because both EA250WH5 and EA640H1 prices depend on pixel pitch, wall size, cabinet quantity, control system, spare modules and shipping, and each wall is quoted per project. Those inputs are not optional context; they are the variables the source names for the project quotation.

Budget Spare Modules, Cleaning and Surface Repair Separately

Spare modules follow the pitch, not the series name. EA640H1 guidance says to order spares in the same pitch to keep brightness and colour even; EA250WH5 uses one 250 × 250 mm module across its cabinet formats, but the module still needs to match the exact pitch and GOB status. Put module spares, power supplies, receiving cards and removal tools on separate lines. A documented spare-parts plan can make those quantities and storage decisions visible before the order is placed.

Cleaning and surface repair should not be buried in the cabinet price. GOB fills gaps between LEDs with a clear protective compound, which makes the module surface more resistant to knocks, dust and cleaning, but the supplied passages do not publish a cleaning interval, cleaning product or GOB repair method. Ask for a written cleaning method and a repair-or-replace rule for the exact GOB pitch, then keep those scopes separate from routine cabinet maintenance. A GOB cleaning and surface inspection budget can hold those lines without assuming a series-wide procedure.

A Practical Approval Sequence

Start by naming the exact model and pitch. Confirm whether that pitch is documented as GOB: EA640H1 GOB on P1.25 to P2, EA250WH5 GOB on P1.25, P1.56 and P1.95. Then request the GOB module line, matching spare modules by pitch, cleaning method, surface-repair provision, control system, freight and installation as separate items. Do not approve a series-level GOB claim until the quote shows the pitch and module type that will ship.

Defer the GOB comparison if the quotation cannot state the exact pitch, module size and GOB status. The documented split is material: a P2.5 EA640H1 uses SMD2020, while P1.25 to P2 use GOB; EA250WH5 GOB is limited to P1.25, P1.56 and P1.95 in the supplied evidence. If the project later expands or mixes models, treat compatibility and spare-module matching as a new written confirmation rather than extending the earlier GOB assumption.

Quote-Scope Mistakes That Distort GOB Budgets

The first mistake is applying one GOB claim to every pitch. The EA640H1 and EA250WH5 examples both show pitch-limited GOB, so a single series total can hide which modules are protected. The second is confusing GOB with COB. EA600COB3 uses flip-chip COB modules in six pitches from P0.62 to P1.87; that is a different module construction from GOB, so a COB line should not be used as evidence that a GOB pitch exists.

A third mistake is budgeting one generic spare set for a mixed wall. If the wall combines a GOB pitch with a non-GOB pitch, the spare module line must name each module and pitch separately. A fourth is treating a rental cabinet’s optional hardware as GOB. EA1000H8 supports front and rear service and an optional curve lock, but if GOB is specified, request the exact module protection as its own line. Finally, keep freight, installation and commissioning visible so a lower module price does not hide missing scope.

GOB Pitch Scenarios and What to Confirm

Buyer checklist

• Name the exact model, pixel pitch, module size and GOB status for every main cabinet line.
• Compare the quoted pitches against documented GOB: EA640H1 P1.25 to P2; EA250WH5 P1.25, P1.56 and P1.95.
• List spare modules by pitch and module variant; keep power supplies and receiving cards separate.
• Request a written cleaning method and surface-repair or replace rule for the exact GOB surface.
• Keep control system, shipping, freight, installation and commissioning on separate quotation lines.
• If a rental or mixed cabinet is included, confirm its module protection separately; EA1000H8 does not document GOB in the supplied passage.

Frequently asked questions

How should buyers budget GOB when only some pitches in an LED cabinet series have it?

Budget GOB as a pitch-specific line. For EA640H1, quote GOB on P1.25, P1.53, P1.86 and P2, and quote P2.5 with standard SMD2020. For EA250WH5, quote GOB on P1.25, P1.56 and P1.95. Add matching spare modules, written cleaning method, surface-repair provision, control system, shipping and freight as separate lines so the protected pitch is visible.

Which EA640H1 pitches are documented as GOB?

The EA640H1 source documents GOB on P1.25, P1.53, P1.86 and P2 models. The P2.5 model uses a standard SMD2020 module. A quotation should therefore state GOB or SMD2020 beside each exact pitch rather than describing the whole cabinet series as GOB-protected.

Which EA250WH5 pitches are documented as GOB?

The EA250WH5 source names GOB on P1.25, P1.56 and P1.95. The series runs from P1.25 GOB to P3.91, and P2.5 to P3.91 is described for walls viewed from about 3 m. Confirm GOB only for the exact pitches where it is documented, and request written confirmation for any other pitch.

Should spare modules be quoted per pitch or per cabinet series?

Quote spare modules per exact pitch and module variant. EA640H1 guidance says to order spares in the same pitch to keep brightness and colour even, and EA250WH5 uses one 250 × 250 mm module across its cabinet formats. Keep module spares separate from power supplies, receiving cards and removal tools.

Does GOB mean cleaning and surface repair can be left out of the quotation?

No. GOB fills gaps between the LEDs with a clear protective compound, which makes the module surface more resistant to knocks, dust and cleaning. The supplied passages do not publish a cleaning interval or a GOB repair method, so request a written cleaning method and a repair-or-replace rule for the exact GOB pitch and keep them as separate quotation lines.

Is EA600COB3 a GOB option for buyers comparing module protection?

EA600COB3 is documented as a COB screen using flip-chip COB modules in six pitches from P0.62 to P1.87. That is a different module construction from GOB. If GOB protection is specified, keep the request separate and name the exact model, pitch and module type rather than treating the COB line as a GOB quotation.

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