Halo's power cooler allows you to chill or freeze your favorite food and drinks. Deep freeze food as low as -4°F or cool drinks up to 50°F. With a 32QT (30L) storage capacity, the cooler can hold up to 40 12oz cans. The hard-sided cooler is durable, impact-resistant, and insulated to help keep contents cold or frozen whether you're connected or disconnected from power. Plus the ice-free cooling saves space and weight. Designed to maximize storage space, the HALO 32Qt Hybrid Fridge & Freezer is the perfect size to replace your existing cooler. With side handles, tie-down anchor points, and an integrated wheel set this cooler is easy to transport. The 3-Level Battery Protection monitors input DC voltage of 12V and 24V systems optimizing power consumption and preventing dead car batteries. When it senses low voltage, it will automatically turn off. Low is the default setting. H (High) – Select H for most vehicles when only a brief run time is needed. M (Medium) – Select M for most vehicles when longer run times are needed. L (Low) – Select L for auxiliary supply batteries like portable power stations with 12V outlets. The lid has integrated cup holders and there's a convenient bottle opener and tie-down anchors built right. The shell is made for High-Density Polyethylene (HDPE) so it is durable, strong, abrasion-resistant and lightweight so it is ready wherever you go. With dual power options, you can conveniently use it at home with the AC cable or on the road with the 12V DC car charging adapter cable. Before hitting the road and to ensure the best performance, it is recommended that you pre-cool the unit using the AC power cable. Doing this prior to adding your refrigerated or frozen food and drinks will allow it to run more efficiently once you transition to the DC power in your vehicle