Rated power: 20W Typical applications: With 36 multicrystalline cells in series, this module charges batteries efficiently in virtually any climate. Commercial applications of the BP SX 20 include remote telemetry, instrumentation, sensors, signals, and land-based navigation aids. Configuration: BP SX 20M - Multimount frame with lo-pro J-Box and output cables BP SX 20J - Clear universal frame and standard J-Box Nominal voltage: 12V Cell technology: Multicrystalline Dimensions: BP SX 20M ? 501 x 421 x 23mm BP SX 20J ? 425 x 502 x 50mm Weight: BP SX 20M ? 2.5kg BP SX 20J - 3.0kg Glass type: High transmission 3mm tempered glass. Frame type: BP SX 20M - Clear anodised aluminium alloy type 6063T6 multimount frame. Colour: silver BP SX 20J - Clear anodised aluminium alloy type 6063T6 universal frame. Colour: silver.