The Armor Series of LED bulb: is impressively bright, with an unparalleled Black-Chrome style. The white is one of the brightest bulbs we offer, and the other colors are vibrant and impressive. The Armor series look great on and off, so if you're looking for a super bright option that also looks cool, you've found the right option! Using state of the art: 2835 SMD LED chips to produce unparalleled light output with high-efficiency power usage! The focusing lens on top creates a 165 degree beam pattern output and the decorative metal style of the bulb surrounding is an excellent heat sink. This means we can push these LEDs to the limit without risk of damaging them from heat! Get ready for an amazing bulb that will last a very long time. The circuitry: in the Armor series of LED bulbs by GTR Lighting is unique, in that it will work with any OEM wiring configuration you will find. CK Style, SACK style, normal/traditional style, it will work in all socket types. This makes your life easier by having a great performing bulb that takes zero guesswork to install! Recommended Application: Fog LightsDaytime Running LightsBack up / Reverse Lights Constant Current Driver: The Armor Series of LED bulbs from GTR Lighting are built using a state of the art Constant Current Driver inside the bulb. This allows them to be more reliable when used on vehicles that have voltage fluctuations due to electrical system design or fault. A constant current driver is a device that takes any incoming voltage and smooths it out, regulates it, so a steady stream of voltage/current reaches the LED. This helps the LED bulb last longer than bulbs that don't have this device built in.