[REAL-WORLD POWER] Rated 400W at STC; actual output varies with sun angle, temperature, shading, cable runs, and controller—MPPT helps keep charging steadier.
[3 m MC4 CABLE—LONGER REACH] 3 m (9.84 ft) leads give more routing freedom than short-lead panels, often reducing extra extensions and joints. Cleaner runs, fewer weak links.
[12V: USE PARALLEL] For most 12 V systems, parallel wiring delivers more stable performance; use series only if your controller explicitly supports higher input voltage.
[FEWER JOINTS VS 4×100W] One 400W panel replaces four 100W units—fewer branch pieces and connections, faster install, less risk of power loss from bad joints.
[OUTDOOR-READY BUILD] Tempered glass and aluminum frame with a sealed junction box—designed for rain and splashes in yard/garden applications.
