The smallest of BP Solar's SX module series, BP SX 5 and BP SX 10 photovoltaic modules operate DC loads with small to moderate energy requirements. With 36 multicrystalline cells in series, they charge 12V batteries efficiently in virtually any climate. Typical commercial applications of these modules, which generate nominal maximum power of 4.5 watts and 10 watts respectively, include remote telemetry, instrumentation systems, security sensors, and signals.