(SP30 series)-- Voltage: DC4.5v-24v Head: 40cm-210cm Flow:100L/H-240L/H Current:85mA-250mA (SP40 series)- -Voltage: DC6v-24v Head: 150cm-650cm Flow:240L/H-800L/H Current:300mA-900mA (SP50 series)- -Voltage: DC12v-24v Head: 155cm-1000cm Flow:1030L/H-3600L/H Current:900mA-3600mA 1. ADVANTAGE (1) Long life more than 50000h (2)Low or no maintenance (3)Submersible installation (4) low consumption (5) low noise<38db (4)Can be customized according to user requirements 2: Dimension: (SP30)-34mmx36mmx39mm (SP40)-86mmx63mmx48mm (SP50)-100mmx84mmx64mm 3.REMARKS: Maximum liquid temperature: 140F-212F; (according to user requirement) Power cord: according to user requirement.