Low Voltage Cutoff for bed power & LEDs

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 (

$18 Blue Sea Systems 4364 Water-Resistant Accessory Panel, 15A Circuit Breaker, 2 Blank Apertures

Similar to this). I also plan on running

$32 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

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.

Has anyone used something like below?

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

LINK
It's $15, programmable for voltage protection values, lets you know when it's in a protection mode.