Name: Luminous Optimus 3500+ Pure Sine Wave Inverter
Brand: Luminous
Price: 19990 INR

Where to buy in India

2 exact seller pages checked

2 sellers for this variant · 2 seller profiles pending verification. Compare evidence, price, stock, invoice and warranty details, then re-check every term on the seller’s website.

Seller option

BatteryCity

Listed — unverified

External seller website batterycity.in

Listed on Fron.in, but manual seller verification is still pending.

Listings are informational, not endorsements.

₹19,990

Rs 19,990 displayed for the without-exchange option

Warranty: Unclear
GST invoice: Confirm
Stock: Exact India listing showed Add to Cart and two sold in the prior eight hours on its captured page; confirm current stock and serviceable location
Checked: Checked 13 Aug 2026
Evidence: 1 evidence link

Seller destination

View on BatteryCity

Opens the exact product page on BatteryCity.

Re-check the variant, final price, stock, GST invoice and purchase terms before paying.

Review seller profile on Fron

Research evidence and seller notes

Delivery: Confirm directly with the seller.

Exact seller product page fetched and matched against product name during research verification.

These links support the listing details above. They are research references, not purchase buttons.

BatteryCity product pageExact seller product page for Luminous Optimus 3500+ Pure Sine Wave Inverter at BatteryCity; fetched and title-matched on 2026-08-13.

Seller option

Luminous Official Store

Listed — unverified

External seller website luminousindia.com

Listed on Fron.in, but manual seller verification is still pending.

Listings are informational, not endorsements.

₹20,899

Rs 20,899 inclusive of taxes against an Rs 30,990 MRP

Warranty: Manufacturer India warranty
GST invoice: Confirm
Stock: Official exact-product direct cart route was active on 2026-08-13; confirm pincode stock, delivery and installation
Checked: Checked 13 Aug 2026
Evidence: 1 evidence link

Seller destination

View on Luminous Official Store

Opens the exact product page on Luminous Official Store.

Re-check the variant, final price, stock, GST invoice and purchase terms before paying.

Review seller profile on Fron

Research evidence and seller notes

Delivery: Confirm directly with the seller.

Exact seller product page fetched and matched against product name during research verification.

These links support the listing details above. They are research references, not purchase buttons.

Luminous Official Store product pageExact seller product page for Luminous Optimus 3500+ Pure Sine Wave Inverter at Luminous Official Store; fetched and title-matched on 2026-08-13.

Ordered by human-assigned verification status, then seller name.

How verification works

Before you pay

Confirm exact variant

Match model, storage, memory and included accessories on the seller page.

Confirm GST invoice

Ask whether a valid GST invoice is included before payment.

Confirm warranty and returns

Review the warranty owner, duration and seller return terms.

Buying in India

What is known, and what to confirm

The dossier separates captured evidence from the details that still need a buyer check.

Research coverage

4/5 ready, 1 needs buyer review

Exact seller pages
2 exact reseller product pages are mapped.
Ready
Price / stock signal
2 seller rows include a concrete price signal.
Ready
Warranty clarity
1 seller row has non-unclear warranty wording.
Ready
GST invoice visibility
GST invoice availability is not captured; ask seller before paying.
Check
Evidence trail
Every seller row has at least one evidence link for re-checking.
Ready

Coverage is not an endorsement. It shows whether exact pages, commercial terms and evidence are available for you to re-check.

Product-specific buyer note

The quoted product is the inverter only; budget for two matched 12 V batteries, interconnects, protective devices, rack and installation. Do not size from the 3 kVA label alone: keep continuous load within 2400 W and verify motor/compressor starting surge and desired runtime. BatteryCity lists dimensions, weight and 24-month warranty that conflict with the current Luminous page, so the manufacturer values are used and the seller conflict must be resolved before payment. Confirm official serial warranty, pincode service, GST invoice and battery compatibility.

India regulatory note

A 24 V high-current battery bank can cause severe burns, fire, toxic exposure and explosive gas. Installation, earthing, isolation, fuse/breaker selection, cable sizing, polarity and ventilation should be handled by a qualified installer following Luminous instructions and local code. Use matched batteries, keep ignition sources away, wear appropriate PPE, and never bypass protections. This unit must not back-feed the grid or building wiring through an improvised connection.

Product reference

Specifications

Use these captured specifications to match the exact model and variant on the seller page.

model identity: Luminous Optimus 3500+ home inverter; official page route ends in optimus-3500 and identifies the 3 kVA / 24 V model
capacity: 3000 VA (3 kVA)
maximum running load: Up to approximately 2400 W, with motor and compressor starting surge assessed separately
waveform: Pure sine wave output
battery system: 24 V DC using two matched external 12 V batteries connected as specified by Luminous
battery inclusion: Batteries are not assumed included in the inverter-only price
operating modes: Selectable Eco and UPS input modes
transfer time: Manufacturer literature states changeover below approximately 20 ms under reference conditions
output voltage setting: User-adjustable output-voltage selection across approximately 200 to 240 V
display: LCD status display for operating, charging, load, backup-time and fault information
charging current: Configurable charging-current behavior, with literature describing settings up to approximately 21 A; match it to the installed battery bank
protections: Deep-discharge, overload, output short-circuit, over-temperature, low-battery and no-load protections are described
battery compatibility: Supports compatible flat-plate, tubular and SMF lead-acid battery configurations; exact capacity and charging settings must follow current manual and installer advice
dimensions: Official product data lists approximately 30 x 32.6 x 28.4 cm
weight: Official product data lists approximately 24 kg for the inverter
warranty: Official direct page displayed a 36-month manufacturer warranty; registration, invoice and exclusions must be confirmed
solar input: No dedicated PV input is assumed; this is treated as a home UPS/inverter unless an official configuration explicitly states otherwise

Product context

Common use cases

High-capacity backup for grouped household lights, fans, networking and electronics
Home-office or small-shop backup where pure-sine output and status monitoring are useful
Selected refrigerator, cooler or motor loads after an installer verifies continuous and starting-surge requirements

Evidence

Product sources

Research sources

These links document product claims and specifications. They are not seller destinations; use the seller options above when you are ready to shop.

Exact official India identity, direct price/cart route, 3 kVA/24 V architecture, 2400 W load, modes, LCD, dimensions, weight and 36-month warranty.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Exact-product owner-review route showed two reviews and a high displayed rating, providing limited demand evidence rather than a sales count.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Official bestseller merchandising supplies brand-side popularity context; it is not treated as audited unit-sales data.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Range brochure cross-checks Optimus family capacity, battery system, pure-sine positioning, modes and protection features.
SELLER PAGEOpen sourcefairtronix.incaptured 13 Aug 2026
Exact second India route, displayed price, Add to Cart state, two-recent-sales demand signal and provenance for the decoded image; conflicting seller specs are explicitly rejected.
SELLER PAGEOpen sourcebatterycity.incaptured 13 Aug 2026
The exact Optimus 3500+ entry showed 13 ratings and three reviews when checked, providing supplemental India marketplace demand context without validating specifications.
MARKETPLACEOpen sourceshopsy.incaptured 13 Aug 2026

Report an error on this pageProduct details last verified 13 Aug 2026

2 exact seller pages checked

2 sellers for this variant · 2 seller profiles pending verification. Compare evidence, price, stock, invoice and warranty details, then re-check every term on the seller’s website.

Seller option

BatteryCity

Listed — unverified

External seller website batterycity.in

Listed on Fron.in, but manual seller verification is still pending.

Listings are informational, not endorsements.

₹19,990

Rs 19,990 displayed for the without-exchange option

Warranty: Unclear
GST invoice: Confirm
Stock: Exact India listing showed Add to Cart and two sold in the prior eight hours on its captured page; confirm current stock and serviceable location
Checked: Checked 13 Aug 2026
Evidence: 1 evidence link

Seller destination

View on BatteryCity

Opens the exact product page on BatteryCity.

Re-check the variant, final price, stock, GST invoice and purchase terms before paying.

Review seller profile on Fron

Research evidence and seller notes

Delivery: Confirm directly with the seller.

Exact seller product page fetched and matched against product name during research verification.

These links support the listing details above. They are research references, not purchase buttons.

BatteryCity product pageExact seller product page for Luminous Optimus 3500+ Pure Sine Wave Inverter at BatteryCity; fetched and title-matched on 2026-08-13.

Seller option

Luminous Official Store

Listed — unverified

External seller website luminousindia.com

Listed on Fron.in, but manual seller verification is still pending.

Listings are informational, not endorsements.

₹20,899

Rs 20,899 inclusive of taxes against an Rs 30,990 MRP

Warranty: Manufacturer India warranty
GST invoice: Confirm
Stock: Official exact-product direct cart route was active on 2026-08-13; confirm pincode stock, delivery and installation
Checked: Checked 13 Aug 2026
Evidence: 1 evidence link

Seller destination

View on Luminous Official Store

Opens the exact product page on Luminous Official Store.

Re-check the variant, final price, stock, GST invoice and purchase terms before paying.

Review seller profile on Fron

Research evidence and seller notes

Delivery: Confirm directly with the seller.

Exact seller product page fetched and matched against product name during research verification.

These links support the listing details above. They are research references, not purchase buttons.

Luminous Official Store product pageExact seller product page for Luminous Optimus 3500+ Pure Sine Wave Inverter at Luminous Official Store; fetched and title-matched on 2026-08-13.

Ordered by human-assigned verification status, then seller name.

How verification works

Before you pay

Confirm exact variant

Match model, storage, memory and included accessories on the seller page.

Confirm GST invoice

Ask whether a valid GST invoice is included before payment.

Confirm warranty and returns

Review the warranty owner, duration and seller return terms.

What is known, and what to confirm

The dossier separates captured evidence from the details that still need a buyer check.

Research coverage

4/5 ready, 1 needs buyer review

Exact seller pages
2 exact reseller product pages are mapped.
Ready
Price / stock signal
2 seller rows include a concrete price signal.
Ready
Warranty clarity
1 seller row has non-unclear warranty wording.
Ready
GST invoice visibility
GST invoice availability is not captured; ask seller before paying.
Check
Evidence trail
Every seller row has at least one evidence link for re-checking.
Ready

Coverage is not an endorsement. It shows whether exact pages, commercial terms and evidence are available for you to re-check.

Product-specific buyer note

India regulatory note

Specifications

Use these captured specifications to match the exact model and variant on the seller page.

model identity: Luminous Optimus 3500+ home inverter; official page route ends in optimus-3500 and identifies the 3 kVA / 24 V model
capacity: 3000 VA (3 kVA)
maximum running load: Up to approximately 2400 W, with motor and compressor starting surge assessed separately
waveform: Pure sine wave output
battery system: 24 V DC using two matched external 12 V batteries connected as specified by Luminous
battery inclusion: Batteries are not assumed included in the inverter-only price
operating modes: Selectable Eco and UPS input modes
transfer time: Manufacturer literature states changeover below approximately 20 ms under reference conditions
output voltage setting: User-adjustable output-voltage selection across approximately 200 to 240 V
display: LCD status display for operating, charging, load, backup-time and fault information
charging current: Configurable charging-current behavior, with literature describing settings up to approximately 21 A; match it to the installed battery bank
protections: Deep-discharge, overload, output short-circuit, over-temperature, low-battery and no-load protections are described
battery compatibility: Supports compatible flat-plate, tubular and SMF lead-acid battery configurations; exact capacity and charging settings must follow current manual and installer advice
dimensions: Official product data lists approximately 30 x 32.6 x 28.4 cm
weight: Official product data lists approximately 24 kg for the inverter
warranty: Official direct page displayed a 36-month manufacturer warranty; registration, invoice and exclusions must be confirmed
solar input: No dedicated PV input is assumed; this is treated as a home UPS/inverter unless an official configuration explicitly states otherwise

Product sources

Research sources

These links document product claims and specifications. They are not seller destinations; use the seller options above when you are ready to shop.

Exact official India identity, direct price/cart route, 3 kVA/24 V architecture, 2400 W load, modes, LCD, dimensions, weight and 36-month warranty.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Exact-product owner-review route showed two reviews and a high displayed rating, providing limited demand evidence rather than a sales count.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Official bestseller merchandising supplies brand-side popularity context; it is not treated as audited unit-sales data.
BRAND SITEOpen sourceluminousindia.comcaptured 13 Aug 2026
Range brochure cross-checks Optimus family capacity, battery system, pure-sine positioning, modes and protection features.
SELLER PAGEOpen sourcefairtronix.incaptured 13 Aug 2026
Exact second India route, displayed price, Add to Cart state, two-recent-sales demand signal and provenance for the decoded image; conflicting seller specs are explicitly rejected.
SELLER PAGEOpen sourcebatterycity.incaptured 13 Aug 2026
The exact Optimus 3500+ entry showed 13 ratings and three reviews when checked, providing supplemental India marketplace demand context without validating specifications.
MARKETPLACEOpen sourceshopsy.incaptured 13 Aug 2026

2 exact seller pages checked

BatteryCity

Luminous Official Store

Checks to complete before paying

Confirm exact variant

Confirm GST invoice

Confirm warranty and returns

What is known, and what to confirm

Research coverage

Exact seller pages

Price / stock signal

Warranty clarity

GST invoice visibility

Evidence trail

Product-specific buyer note

India regulatory note

Specifications

Common use cases

Product sources

2 exact seller pages checked

BatteryCity

Luminous Official Store

Checks to complete before paying

Confirm exact variant

Confirm GST invoice

Confirm warranty and returns

What is known, and what to confirm

Research coverage

Exact seller pages

Price / stock signal

Warranty clarity

GST invoice visibility

Evidence trail

Product-specific buyer note

India regulatory note

Specifications

Common use cases

Product sources