Callsun specializes in high-efficiency solar panels, trickle maintainers, and off-grid power solutions tailored for RVs, marine vessels, and remote battery systems.
Callsun is a trusted manufacturer of advanced solar technology, specializing in high-efficiency monocrystalline PV modules, flexible solar panels, and intelligent solar battery trickle maintainers. Operated by Shenzhen Guangchuxinneng Technology Co., Ltd., Callsun develops robust, scalable solar solutions designed for off-grid living, recreational vehicles, marine applications, and residential setups requiring reliable outdoor power.
Whether you are looking to passively maintain a 12V system with a weatherproof trickle charger or fully power an off-grid cabin using a 400W bifacial solar array, Callsun offers durable, IP68-rated equipment engineered to withstand the elements. Built with a focus on ease-of-use and power efficiency, their solar panels utilize top-tier technologiesāsuch as half-cell processes and anti-PID materialsāto guarantee longevity and superior real-world energy yield.
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Yes, Callsun solar panels typically feature an IP68 waterproof rating, ensuring strong protection against rain and dust for outdoor use. However, they should not be submerged in water.
Yes, you can connect Callsun panels in series or parallel using standard MC-4 connectors. Make sure your solar charge controller and battery bank support the combined voltage or current limit to avoid system damage.
To file a warranty claim, email Callsun customer service at callsun-service@outlook.com. You will need to provide your purchase receipt alongside a detailed description or photos of the problem.
Warranty periods vary by product. Standard high-wattage solar panels generally have a 5 to 10-year warranty, while accessories like cables and trickle chargers come with a 1-year warranty. Please check your specific user manual to confirm.