Sphere 210W V2 High Voltage Twin Cell Solar Panel — Thin Cable, Multi-Panel Systems

The Sphere 210W V2 High Voltage Twin Cell Solar Panel gives you all the shade-tolerant twin cell performance of the standard 210W V2 — but with doubled voltage (34.72V vs 17.36V) for maximum flexibility in multi-panel systems. Higher voltage means longer cable runs can use thinner gauge wire, and more panels can be added per string without costly wiring upgrades.
Like all Sphere High Voltage panels, this model requires an MPPT solar controller — the smart charging standard that extracts up to 30% more power from panels than older PWM controllers. If you're planning a multi-panel setup or have long cable runs from roof to battery bank, the High Voltage variant is the smarter choice.
They retain all the features that make Sphere the best solution for tackling partial shading. With the unique twin cell design, each half of the panel functions independently, ensuring consistent power output even when there is partial shading.

V2 upgrades over the 200W High Voltage predecessor:

- 10W more output (210W vs 200W) from the same 670 × 1480mm footprint
- Higher current per watt — improved V2 twin cell generation

Features:

- 210W output with high voltage configuration (34.72V) — ideal for multi-panel string systems
- Thinner gauge cable can be used over longer runs without efficiency loss
- Add more panels to existing systems without rewiring
- Sphere Twin Cell Technology — each half operates independently in partial shade
- IP65 rated junction box with 0.9m MC4 leads
- 10-year power output guarantee (≥90%), 25-year guarantee (≥80%)
- Requires MPPT solar controller (not compatible with PWM)