Quick Summary — All 5 Inverter Brands
| Brand | Price (6kW) | Warranty | EPS Backup Speed | Support | Best For |
|---|---|---|---|---|---|
| Solis S6-EH1P series |
~Rs.250,000 | 5yr (→10yr Care) | ~5ms ✅ | 8+ cities | Best service network |
| GoodWe ES-Uniq series |
~Rs.240,000 | 5yr | ~20ms ⚠ | 3–4 cities | Good monitoring app |
| FoxESS H1 series |
Contact for price | 10yr included | <10ms ✅ | 3–4 cities | Best warranty |
| Knox Knox Hybrid |
Most affordable | 2yr (or 5yr model) | ~20ms | 3–4 cities | Budget option |
| Sungrow SH series |
~Rs.245,000 | 5yr | ~5ms ✅ | Karachi + Lahore | Fastest EPS backup |
Brand-by-Brand Overview
Sungrow — #2 World, Fastest EPS Speed
The world's second-largest inverter manufacturer, now available at Saigal Solar. Sungrow SH hybrid inverters deliver ~5ms EPS backup switching — near-UPS speed — meaning desktop PCs, CCTV NVRs, and routers stay on during WAPDA cuts without rebooting. Priced at Rs.280,000 for 6kW. Strong battery compatibility across Dyness, Pylontech, and major brands. Monitoring via iSolarCloud. The SH series covers 3–12kW residential and commercial. Service is strongest in Karachi and Lahore — confirm local support before purchasing in other cities.
Solis — Widest Service Network
The most widely installed hybrid inverter brand in Pakistan. Solis S6-EH1P offers IP66 weatherproofing, fast ~5ms EPS backup switching, 2 MPPTs, and the widest battery compatibility of any brand — Dyness, Pylontech, Knox, FoxESS, and most other brands all integrate seamlessly. Service and support in 8+ cities — the strongest local network in Pakistan. Solis Care extends warranty to 10 years. Available in 3–12kW single-phase, plus 3-phase S6-EH3P for industrial use.
GoodWe — Advanced Monitoring App
GoodWe ES-Uniq is an IP65-rated hybrid inverter with a genuinely strong monitoring platform (EzLink/SEMS). Available in 3–12kW single-phase. Two key points from Pakistan field experience: EPS backup switching takes approximately 20ms, which can cause computers, NVRs, and routers to reboot on each WAPDA outage. GoodWe also has inconsistent CAN communication with Dyness and Pylontech batteries in field use — best paired with GoodWe's own battery. Priced at Rs.240,000 for 6kW.
Knox — Best Budget Option
Knox Krypton hybrid inverters are the most affordable IP65 option in Pakistan — Rs.160,000 for a 6kW unit, vs Rs.250,000 for Solis. The trade-off: shorter 2–5yr warranty (confirm model-specific terms in writing before purchase), smaller service network (3–4 cities), and fewer battery compatibility certifications. A viable option for tight budgets when Solis is out of reach and the warranty terms are acceptable.
FoxESS — Best Warranty (10 Years Included)
FoxESS H1 carries Pakistan's strongest inverter warranty — 10-year full replacement, no extra cost, included in the purchase price. Peak efficiency 98%. IP65. Available in 3–12kW single-phase (H1) and 3-phase (H3 Pro). Priced at Rs.214,500 for 6kW — the cheapest among the established brands. Key trade-offs: service network limited to 3–4 cities; and FoxESS works best with FoxESS's own battery — pairing with Dyness or Pylontech requires more careful configuration and can limit future expansion flexibility compared to Solis. Best choice for buyers near a service city who want maximum warranty peace of mind at the lowest price.
Head-to-Head Comparisons
Solis vs GoodWe →
EPS speed and battery compatibility. Solis is Rs.10,000 cheaper with ~5ms EPS vs GoodWe's ~20ms. GoodWe has known field issues with Dyness and Pylontech. Both support zero export. Full 12-point comparison.
Solis vs FoxESS →
Price vs warranty. FoxESS offers 10-year full replacement at no extra cost — the strongest warranty in Pakistan. Solis is Rs.10,000–20,000 cheaper with a wider service network. Full trade-off analysis.
Solis vs Knox →
IP66 vs IP65. Knox Krypton saves Rs.90,000 on a 6kW unit but carries a shorter 2–5yr warranty vs Solis's 5yr (→10yr). IP21 efficiency explained. When the Knox saving is worth it — and when it is not.
FoxESS vs GoodWe →
Warranty vs zero-export. FoxESS offers 10-year full replacement — the best standard warranty in Pakistan. GoodWe has built-in zero-export (CT clamp included). Both similarly priced. Scenario-dependent decision.
How to Choose — Four Buyer Scenarios
Scenario 1 — Price-Conscious Home Buyer
Recommendation: Solis S6-EH1P
Rs.250,000 for 6kW — competitive among established brands. Widest service network (8+ cities), widest battery compatibility, and Solis Care extends warranty to 10yr. Knox is Rs.90k cheaper but carries shorter warranty and fewer service cities.
Scenario 2 — Computers, NVRs, or Routers on Backup
Recommendation: Sungrow or Solis
If your backup loads include desktop PCs, servers, CCTV NVRs, gaming equipment, or broadband routers, EPS transfer time is critical. GoodWe's ~20ms switching can cause these devices to reboot on every WAPDA outage. Sungrow (~5ms) and Solis (~5ms) are effectively transparent — sensitive electronics don't notice the switch. All three brands support zero-export — this is no longer a differentiator between them.
Scenario 3 — Maximum Warranty Priority
Recommendation: FoxESS H1
10-year full replacement warranty included in the purchase price — no Solis Care purchase required. If you are near a FoxESS service city and warranty peace of mind is your top priority, FoxESS delivers this better than any other brand in Pakistan's 2026 market.
Scenario 4 — Large Factory / Commercial
Recommendation: Sungrow or Solis (3-phase)
For systems above 30kW, Sungrow's commercial track record and iSolarCloud monitoring make it the natural choice. For systems 10–30kW, Solis S6-EH3P provides excellent value with local support. FoxESS H3 Pro is also strong if the 10yr warranty is valuable at commercial scale.