LDA series · Indoor

Lampro LDA || 4pro (P4) Indoor LED Display

The Lampro LDA 4pro board features a self-developed cabinet with a unique exterior, anti-dropping holes on both sides, and a bump-proof raised base for added durability. It offers efficient installation with 4PCS locating pins and 4PCS spring-loaded quick-locks, supporting both front and rear maintenance. Delivering high brightness (≥600nits), high contrast, and a 3840Hz refresh rate, it ensures smooth, vivid visuals. With excellent flatness, dual backup for power and signal, and support for seamless integration, it’s ideal for digital signage displays and advertising displays.
Pixel pitch4 mm
Best viewed from4 m+
BrightnessSupport
Other pitches finer pitch = sharper up close
Size your wall Module 320 × 160 mm
Nearest build · Resolution
PriceRs. 12,558 per module · excl. VAT

Supply price in NPR. Delivery, structure, processor, installation and VAT are itemised in your quote; project pricing available.

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Official warranty Installed by our engineers Spares in Kathmandu
LAMPRO LDAⅡ Series
Part of the LAMPRO LDAⅡ Series

Priority for Indoor Commercial Display

Indoor LED display series delivering consistent image quality across P1.2 to P4 pixel pitches with a 3840Hz high refresh rate. Easy installation and broad compatibility make it a trusted choice for retail…

Official datasheet: LDAⅡ 4 22 models in the series 18 sizes in our shop
Specifications

Spec sheet

Datasheet (PDF)
Pixel pitchP4
BrightnessSupport
Refresh rate3840Hz
Module size320 × 160 mm
Max power331 W/㎡
LED lifespan100000hrs
Display 14
Pixel Pitch4mm
LED TypeSMD2121
Module Resolution(W×H)80X40=3200 Pixels
Pixel density(pixels/sq.m.)62500 dot/㎡
Single-dot Brightness CalibrationSupport
Brightness600 cd/㎡
Color Temperature2000K~9300K Adjustable
Beam Angle(Hor/Ver°)160°/140°
Brightness/Color Uniformity≥98%
Contrast Ratio5000:1
Frame Changing Frequency60Hz
Refresh Rate3840Hz
Processing Depth12~14Bit
Video Support2K、4K
Electrical 3
Input Power331 W/㎡
Input Power99 W/㎡
Power Supply Input VoltageAC200-240V,Frequency 47-63(Hz)
Mechanical 5
Module Size (WxH)W320mmxH160mm
Cabinet Size (WxHxD)640mmx480mmx71.5mm(With Back Cover)
Cabinet Weight (kg/panel)8.1 kg
MaintenanceFront and Rear maintenance
Cabinet MaterialDie-casting Aluminum
Environment 4
Ingress ProtectionIP30
Life Span(hrs)100000hrs
Working Temp/Humidity(℃/RH)-20℃~45℃ / 10%~60%RH (No Condensation)
Storage Temp/Humidity(℃/RH)-20℃~50℃ / 10%~65%RH (No Condensation)
Compliance 1
CertificationCE/CB/ROHS/EAC
Other 1
Planeness≤0.5mm

LDA 4

Compare

Other pitches in LED Indoor

Lampro LDA || 4pro (P4) Indoor LED DisplayThis productLampro LDA || 2.5pro (P2.5) Indoor LED DisplayLampro LC2.5 (P2.5) Indoor LED DisplayLampro LDA || 3.07pro (P3) Indoor LED Display
Pixel pitch4 mm2.5 mm2.5 mm3 mm
Best viewed from4 m+2.5 m+2.5 m+3 m+
BrightnessSupportSupportSupportSupport
EnvironmentIndoorIndoorIndoorIndoor
PriceRs. 12,558 per moduleRs. 15,870 per moduleRs. 13,200 per moduleRs. 14,490 per module
Questions buyers ask

Before you request a quote

Which pixel pitch do I need?
Divide the closest viewing distance in metres by about 1.2: 2 m away → P1.9, 3 m → P2.5, 4–6 m → P3–P4, roadside → P6–P10. Use the pitch finder on the home page or send us the room and we will shortlist.
Is the price per module, per cabinet or per m²?
Each product page states the unit next to the price. The wall calculator converts it into a supply estimate for your wall size; delivery, structure, processor and installation are itemised separately in the quote.
What content can the screen show?
Anything from a laptop, media player, CCTV or TV box — video, presentations, menus and live feeds — through the video processor supplied with the wall.
How long does installation take?
Most indoor walls up to 10 m² are installed and calibrated in one to two days; outdoor boards depend on the structure and permits. We survey the site first and confirm the schedule in the quote.
What warranty do you give?
Official manufacturer warranty on panels and controllers, serviced by our own engineers in Kathmandu with spares in stock. Warranty terms are itemised in every quote.
Do you deliver and install outside Kathmandu?
Yes. We have installed in Pokhara, Butwal, Bhairahawa, Dang, Dhangadhi, Lumbini and across the valley. Delivery and travel are itemised in the quote.

Tell us the wall.
We'll size the screen.

Share the space and viewing distance — we'll reply with a pixel-pitch recommendation and an itemised quote within one working day.

Prefer WhatsApp? +977 970-906-6376
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