How to Choose the Right Inverter for Your Home
Which Microtek inverter fits a 1BHK, a 2BHK or a large home? A clear sizing table and plain-language advice.
Buying a home inverter isn't about picking the biggest box on the shelf — it's about matching the inverter and battery to what your home actually uses during a power cut. Get it right and you'll have years of quiet, reliable backup. This guide uses the actual Microtek range we stock so you can see exactly which model fits your home.
Step 1: List what you need to run during a cut
Walk through your home and note the essentials you need when the grid is down — you rarely need everything at once. As a rough guide to wattage:
- LED bulb: 7–12 W each
- Tube light / ceiling fan: 40–80 W each
- LED TV: 80–120 W
- Wi-Fi router + set-top box: 20–40 W
- Refrigerator (single door): 150–250 W running (more at startup)
- Mixer / iron / microwave: 700–1,500 W (heavy, intermittent loads)
Step 2: Match your home to an inverter size
Add up the essentials you'll run together, then use this table. The example models are pure sine wave units from our Microtek range (most carry a 3-year warranty):
| Home | Typical backup load | Recommended capacity | Example Microtek model |
|---|---|---|---|
| 1BHK / small flat | ~300 W (lights, fans, TV, Wi-Fi) | 600–800 VA | UPS LUXE 1200 (950 VA) |
| 2BHK | ~500 W | 1000–1100 VA | UPS LUXE 1400 (1100 VA) |
| 3BHK | ~700–800 W | 1500–1650 VA | UPS LUXE 1900 / Elite 1500 |
| Large home / fridge / pump | 1.5 kW and above | 2.75–8 kVA | Jumbo Home UPS (High Capacity) |
Inverter sizing by home type (Microtek pure sine wave range)
If you're between two sizes, go up rather than down — it leaves headroom for startup surges and a fridge you add later. For loads above about 1.5 kVA, look at the high-capacity Jumbo Home UPS range, which runs from a larger 24V–72V battery bank.
Step 3: Choose pure sine wave
Pure sine wave inverters produce power identical to the grid, so they run sensitive electronics (LED TVs, computers, modern fridges) cleanly, silently and efficiently. Square-wave units are cheaper but can hum and aren't ideal for delicate electronics. Every Microtek LUXE and Elite home model we recommend is pure sine wave.
Step 4: Match the battery to your backup hours
The inverter sets how much you can run; the battery sets how long. A 150Ah tubular battery is the common home choice, with 160–200Ah for longer backup. See our inverter battery buying guide for the details, and consider a ready-matched combo if you'd rather buy both correctly paired in one go.
Step 5: Buy where you'll get installation and service
An inverter is a multi-year purchase, so after-sales matters as much as the spec. We size the system for you, install it at home anywhere in Delhi NCR, take your old inverter or battery in exchange, and provide on-site service and AMC afterwards.
Where to next
Frequently Asked Questions
Can a home inverter run an air conditioner?
Running an AC needs a high-capacity inverter (typically 1.5 kVA and above for a single AC) and a substantial battery bank, because ACs draw heavy current. Our Jumbo Home UPS range can do it; tell us the AC tonnage and we'll size the system.
What is the difference between VA and watts?
Watts measure the real power your appliances consume; VA is the apparent power the inverter is rated for. Usable watts are roughly 0.7–0.8 times the VA rating, which is why a 1100 VA LUXE 1400 comfortably handles about 800 W.
How long will my inverter back up the house?
It depends on the battery capacity (Ah) and your load. A rough formula is: backup hours ≈ (battery Ah × 12 × 0.8) ÷ load in watts. We can calculate an exact estimate for your setup.
Need help choosing?
Share your requirement and our team will recommend the right product and size for your home or business. Genuine stock, home installation, old-battery exchange, and on-site service & AMC across Delhi NCR — in business since 1998.