Run your fridge, fans, and TV on solar during the day — and still sleep easy at night.
Designed for growing families who want to maximize solar savings without compromising on reliability.
SOL IA-S4 is for you if:
☑️ You want to reduce monthly electricity bills by using solar power during the day
☑️ Your family's energy needs are growing and you need a system that can expand
☑️ You want reliable backup for essential appliances like refrigerators and lighting
☑️ You're looking for a system that pays for itself over time through energy savings
Customer Success Stories:
"I've been in the solar business for eight years and have installed dozens of brands. The S4 stands out because it just works—no weird errors, no compatibility issues with different battery brands. My customers call me back months later to add more panels or another unit in parallel, and the expansion is seamless. That's how you build a business: products that grow with your customers."
— Michael Tan, Solar Contractor, Malaysia
"We run a small homestay with four rooms. Guests expect AC, hot water, and Wi-Fi 24/7. The S4 system handles all our daytime loads on solar, and at night we run on stored energy. Our electricity costs dropped 35%, and guests never know when the grid is unstable because everything just works."
— Ketut Suwena from Bali, Indonesia
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