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Find the right power solution.

Tell us what you need. We’ll help with the technical details.

  1. 1 Property & goals
  2. 2 Devices
  3. 3 Usage & backup
  4. 4 Backup & solar
  5. 5 Site & phase
  6. 6 Your solution

What are you powering?

Choose the place that best matches your project.

What would you like to achieve?

You can choose more than one.

I’m not sure — help me choose
Back to shop Next: choose the devices you use.

Which devices do you use?

Tap + for every appliance. Typical wattages are already filled in.

LED Light 12 W typical 10–15 W
Backup 6 h/day
Tube Light 30 W typical 20–40 W
Backup 6 h/day
Outdoor Light 20 W typical 10–50 W
Backup 10 h/day
Devices0 Connected load0 W Daily energy0 kWh
Next: daily usage and backup devices

Daily usage & backup devices

Set how long each device runs, and switch on backup for the ones that must keep working during a power cut.

Actual appliance consumption varies by model, efficiency, inverter technology, operating condition and usage pattern. This calculator provides an initial system estimate. SMART TECH will verify final load and site conditions before final quotation.

Next: backup hours and solar preference

How long do you need backup?

Battery storage is sized only from the devices you marked for backup.

Do you want battery storage?

Which system would you prefer?

Monthly electricity bill (optional — used as a cross-check)

Next: site, roof and electrical connection

Tell us about your site

Choose “Not sure” anywhere — our engineer confirms it during the survey.

Where will the panels be mounted?

Distance from panels to inverter / DB

What is your electrical connection?

Most homes are single phase. A three-phase supply has four wires at the meter and is common in larger buildings.

Do you need installation support?

Your estimated project cost changes with what SMART TECH handles for you.

Next: your recommended system and estimated price
Request an exact quotation Your sized system, product list and estimate reference are attached automatically.

How can we reach you?

Fields marked * are required.

Project location

Preferred contact method

1Count your devicesChoose your appliances, usage hours and what needs backup.
2See your system & estimateCapacity, products and an estimated setup price in seconds.
3Get a tailored proposalAn engineer confirms the site and sends an exact price.

A single product or a complete system — we can help.

Expert advice. Reliable products. A cleaner, brighter Bangladesh.

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