Real feedback from distributors, installers, and brands around the world
Hear from SunStone Energy partners across different markets and regions
SunStone's quality control is exceptional. Every batch we've received has been spot-on, and their engineering team was quick to implement our custom BMS requirements.
The white-label program got us to market in 3 weeks instead of 6 months. We have our own brand, APP, and packaging — and the MOQ was flexible enough for a startup.
We switched to SunStone after quality issues with our previous supplier. Their UL-certified products gave us confidence to expand into the US market.
Working with SunStone on OEM development was smooth. They accommodated our custom BMS firmware requests and delivered 2 weeks ahead of schedule.
The balcony ESS market in France is exploding. SunStone's plug-and-play design and competitive pricing made it the perfect product for our installer network.
After visiting the Shenzhen factory, we were impressed by the automated production lines and QC processes. This isn't a trading company — it's a real manufacturer with real capacity.
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