HQRP 12V / 24V 20 Amp Solar Panel Battery Charge Controller/Regulator 20A 300W with Remote Meter & LED Indicator plus UV Meter HQRP&reg; Solar Charge Controller plus HQRP&reg; UV Meter; Self-consumption: 6mA maximum; Charging circuit voltage drop: 0.26V maximum; Discharging circuit voltage drop: 0.15V maximum; Type of Charging: series PWM; Strong backlight on &lt; 23mA, 15 seconds; Low backlight on &lt; 20mA, 15 seconds; Backlight and LED indicator off &lt; 15mA; Communication cable: 1.5 meters. 200 days warranty!