... low pressure sodium lamp 2. For outdoor solar street lighting 18W-55W Solar LPS Street Light :The birth of low pressure ... sodium lamps Input voltagePowerAmbient temperatureProtection classDC12V18W,26W,35W,36W,55W-30°C-+55°CIP65DC24V 18W,26W,35W,36W,55W,66W,90W-30°C ... -+55°CIP65DC220V18W,26W,35W,36W,55W,66W,90W-30 ...