Replacing your Gladiator's halogen bulbs with LED headlights will make an immediate difference. Not only do LEDs look more crisp and modern, but their brightness and output range makes for a safer driving experience. You'll be able to see potential hazards from farther away, and also be seen more easily by other drivers.
An LED headlight upgrade kit from Mopar will give you brighter output while using less power. Installing the lights on your Gladiator is a simple plug-and-play process. The parts will work directly with your factory components.
There are also direct-swap LED bulb kits for an easy way to switch your halogen bulbs over to LEDs. If you want something that will stand out, try ColorSHIFT halo lights from Oracle. They offer a wide variety of colors and patterns that you can change with the touch of a button.
For better visibility in poor conditions, consider upgrading to LED fog lights as well. If you want improved visibility on the trail, add some light bars and other off-road lights to your rig.