Low Voltage Cutoff for Bed Power & LED's

Has anyone used something like below?

$18 Low Voltage Disconnect, Icstation Over Charge Discharge Protector, Digital Charging Timer Controller, Voltmeter Ammeter for DC 5V-38V Lithium Lead Acid Battery

$16 IS Low Voltage Disconnect, Icstation Over Charge Discharge Protector, Digital Charging Timer Controller, Voltmeter Ammeter for DC 5V-38V Lithium Lead Acid Battery
LINK
It would be a cheap safety net, programmable for voltage protection values, and lets you know when it's in a protection mode.

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I'm waiting on my ARE shell to be delivered and planning in-bed power and lights. I'd like to run power from the battery to a switched panel with 2 x 12V cigarette-style outlets (

$24 Blue Sea Systems 4364 Water-Resistant Accessory Panel, 15A Circuit Breaker, 2 Blank Apertures

$23 Blue Sea Systems 4364-BSS Panel Acc H2O 2 Socket Blank
Similar to this). I also plan on running

$28 Nilight - TL-31 2PCS 60" RGB Truck Bed Light Strip Kit 180 LED RF Remote Control with On Off Switch Blade Fuse 2Way Splitter Extension Cable for Cargo Pickup Truck SUV RV Boat, 2 Years Warranty

$40 Nilight 2PCS 60" RGB Truck Bed Light Strip Kit 180 LED RF Remote Control with On Off Switch Blade Fuse 2Way Splitter Extension Cable for Cargo Pickup Truck SUV RV Boat, 2 Years Warranty (TL-31)
THESE LED strips for lighting.

I'd like to build in some battery protection so I don't end up with a dead battery if I leave something on or plugged in while camping. There are some expensive controllers out there that have this type of protection built in, but I don't have a need for all the features of a SwitchPro or sPod.