Microtek vs Luminous Inverter: Which Should You Actually Buy?

This Microtek vs Luminous inverter comparison covers home inverters (both makers call them “Home UPS”), not solar inverters. Every figure comes from Microtek’s and Luminous’s own websites, product pages, brochures, manuals and catalogue, read 30 September 2026. Differences between figures are our arithmetic. If you are still deciding between a UPS and an inverter, start with UPS vs inverter.

The short answer. On the published specs we read, the two brands tie on the headline items. Both publish a changeover of 15 ms or less (Microtek labels its figure UPS mode), and every model in our tables carries 3 years (Microtek) or “36 Months” (Luminous). The differences are smaller and specific:

• Choose Luminous if you want more watts at the same VA on two pairs below (756 against 725 W at 900 VA; 1,260 against 1,200 W at 1,500 VA on one battery), or a lower offer price on that single-battery 1,500 VA pair (about ₹800 on the makers’ stores, 30 September 2026).
• Choose Microtek if you want a published input window for both modes (80 to 290 V in inverter mode), a published mode-switch procedure, selectable charging current on its LUXE NEW 12 V models, or a 24 V unit at 1,650 VA (the Luminous 24 V pure-sine models we found figures for are 1,500 VA).

The model-number trap: match by VA

Neither maker’s model number is the VA rating. From each maker’s own product titles:

So “Microtek 1100 vs Luminous 1100” (SUPER POWER NEW 1100 SW against Zelio+ 1100) sets a 950 VA unit against a 900 VA one. The tables below pair models by VA instead. One Microtek figure we leave out: the LUXE NEW 1400 is titled “1100VA/825Watt” on Microtek’s store but “1100VA/925W” in its manual (the manual is the stronger source), and an older LUXE 1400 SKU is 1100VA/825W.

Watts per VA. On the Luminous models in these tables, W is 0.84 × VA. On the Microtek models in these tables, it runs from 0.80 to 0.83 (our arithmetic). Both makers’ sizing blogs work from your load in watts (Microtek: “VA = overall watts divided by 0.8”), which is why we print W beside VA.

Microtek vs Luminous at 900 to 950 VA, 12 V, pure sine

The iMERLYN 1050 SW and the two Luminous models are all 900 VA; the Luminous pair publish 31 W more (our arithmetic). The Zelio+ 1100 is about ₹2,300 above the iMERLYN on the rounded prices.

At about 1,100 VA, 12 V, pure sine

Here the Eco Volt Neo 1250+ and ES NEW 1225 SW publish nearly the same watts (924 against 925 W), though the Microtek is rated 15 VA higher.

At 1,500 to 1,650 VA: one battery or two

Both makers sell a 1,500 VA unit that runs on one 12 V battery. On that pair, the Hercules publishes 60 W more and costs about ₹800 less (our arithmetic). For 24 V, the Luminous pure-sine 24 V models we found figures for are all 1,500 VA; Microtek’s LUXE 1900 and Smart Hybrid UPS 1875 (about ₹9,200) are 1,650 VA / 1,320 W. The Zelio+ 1700 page says “Supporting two 24V batteries” while its spec listing says two batteries at 24 V; we read that as two 12 V batteries making 24 V.

Sources: each model’s product page on microtek.in or luminousindia.com, plus Microtek’s series brochures and LUXE NEW manual, and the Luminous 2026 product catalogue, all read 30 September 2026.

Waveform labels. Every model above is pure sine. Microtek’s “DG” models (“Advanced Digital Wave”) are not: three Microtek brochures call their output “TPZi (Trape Zoidal Waveform)”. Luminous labels its non-sine models “Square Wave” in the spec listing on the pages we read. For what that means in use, see sine wave vs square wave inverter.

Changeover time: a tie on published figures

Six Microtek home-inverter series brochures we read (sine and DG) print “UPS Transfer Time ≤ 15msec.”, as do its LUXE NEW and ES NEW DG manuals. Luminous gives “under 15 ms” or “<15 ms”, mode not stated, on three of the 23 Luminous product pages we read (Power Sine 1100, Hercules 1600, Hercules Sine Pro 1500). No Microtek home-inverter brochure, manual or product page we read gives a figure under 10 ms.

One inconsistency is Luminous’s own. Its 3 September 2026 buying-guide blog says “A UPS inverter for home switches in less than 10 milliseconds.” Its product pages say under 15 ms, and we go with the product pages.

Changeover in inverter or Eco mode is not published by either maker in any of these documents we read: those six Microtek brochures, the LUXE NEW 12 V and 24 V and ES NEW DG manuals, 14 Microtek product pages, 23 Luminous product pages and the Luminous 2026 catalogue.

UPS mode, Eco mode and voltage ranges

Both makers use the same idea under different names: a narrow voltage range in UPS mode and a wider one in the other mode. Microtek’s manuals and some of its product pages label these ranges as input; Luminous’s Zelio+ pages word its UPS-mode range as output.

• Microtek calls the wide mode “Inverter mode”: input 80 to 290 V, against 180 to 265 V in UPS mode (its NEW manuals and product pages; its series brochures print different figures, and we use the newer manual). To switch, the LUXE NEW manual says: “To changeover from UPS mode to Inverter mode: Press Power Button for 2secs.”
• Luminous calls it “Eco Mode” and describes it as a “Wider voltage range to reduce battery usage”. Its UPS-mode figure is 180 to 260 V, which the Zelio+ pages describe as “Output voltage regulated” in that range, so it is not an input window like Microtek’s. It does not publish the Eco value on the pages we read. Its catalogue lists input ranges such as 85 to 290 V without saying which mode they apply to.

We could not find Luminous’s switching procedure: on 30 September 2026 its product manual centre served only a placeholder PDF.

Warranty: 3 years on every model compared

Every Luminous model in these tables prints “36 Months”, as do 22 of the 23 Luminous product pages we read; the exception, the Li-on 1250, says “5+3 Years Warranty”. Microtek’s manual says “The Warranty will last for a period of 36 months”, and 13 of the 14 Microtek product pages we read print a 3-year term. The fourteenth, Elite, says “comes with 2 years of warranty” in its features list, while Microtek’s Elite leaflet says “3 YEARS ONSITE WARRANTY”; we go with the leaflet.

Several Microtek pages word it “3 Years (Inverter Only)”. Read that line as covering the inverter, and check the battery’s own terms separately.

Charging current and battery size

• Luminous publishes a maximum charging current per model in its 2026 catalogue, model by model; for the Luminous models in our tables that it covers, the Eco Volt Neo 1250+ is 17 A and the Optimus 1250+ 18 A. The Zelio+ 1100 and 1700 are not in that table, and their product pages do not state it.
• Microtek‘s LUXE NEW 12 V manual says “10A/12A/15A/20A variety of current types can be Selected”. Its older Energy Saver and LUXE brochures give “Constant Charging approx. 10% of the rated Battery Current in AH”.

On battery size, Microtek’s 12 V manuals list “1x12V / 100AH-200AH” lead acid, and its 24 V manual “2x12V / 100AH-200AH”. Luminous gives ranges per model: 80 to 220 Ah (Power Sine 1100), 80 to 250 Ah (Hercules 1600), and 150 to 250 Ah tubular (Icon). It publishes none on the Zelio+, Eco Volt Neo or EVO pages we read.

Microtek prints backup hours per model (“Up to 1.7 Hours” on the LUXE 1400) but not the battery behind them (the SP NEW 1100 SW page lists a load for its “Around 1.6 Hours”, still with no battery), so we do not compare them. If fans make up most of your backup load, see BLDC vs normal ceiling fan.

Service network

A Microtek leaflet states “1500+ Service Engineers | 500+ Service Centers”, and Microtek offers annual maintenance contracts in select cities, with no prices on the pages we read. Luminous publishes no count on the pages we read; its FAQ mentions “nationwide service support, online service booking, extended warranties”. No like-for-like comparison is possible.

What we could not verify

• Changeover in inverter or Eco mode, for either brand.
• Luminous’s Eco-mode voltage range, and any Luminous manual.
• Charging current for the Zelio+ 1100 and 1700.
• Efficiency head to head. Microtek’s brochures say “> 80%” for sine models; several of its product pages say “<80%”. We found no Luminous efficiency figure.
• Reliability or lifespan by brand. We found no such data, so this page names no winner.
• Prices from a second source. All prices except those in the where-to-buy section below are offer prices on the makers’ own stores, 30 September 2026; we have no retailer cross-check.

Buying a New Inverter? Start Here

The full comparison is in Best Inverter for Home in India (2026), the HomeVerdicts guide to inverters for home use. This section shows one Microtek and one Luminous model from that guide, both discussed on this page; they are not the first two in the guide, they do not rank the brands, and the guide compares all of its models.

Amazon India prices on 31 October 2026, rounded to the nearest ₹100 (prices change often). As an Amazon Associate, HomeVerdicts earns from qualifying purchases made through these links.