The XIL-S4100 series 40 watt 4” square off road lamp produces 3200 lumen (300 watt Halogen equivalent). This makes them the most powerful lighting system on the market in such a compact design. Not only do they produce more light, they are also the most efficient with the 4100 series drawing only 3.3 amps. Due to their advanced electronic drivers, the units offer a variable 9-50 Volt DC input and a long life span of 50.000+ Hours. Other key features include: Rugged die-cast aluminium housing (provides optimum durability and heat dissipation). The Solstice series also features an IP68 ingress protection rated housing making them impenetrable to dust and, submersible under water up to 3 meters. The unbreakable polycarbonate lenses are housed by a 6061 aluminum face plate which doubles as a radiant heat sink to melt away snow and ice in frigid conditions. Their stainless steel mounting bracket features knurled aiming knobs for 90 degrees of adjustment and is centered on the profile of the lights which provides a slim 1.5” mounting depth. The Solstice series has also been subjected to a 6Grms vibration test to ensure their performance in high impact conditions (ideal for off-road, and industrial applications). Performance of these lights is better than Xenon HID lights costing twice as much. Built to last, these lights also feature a solid warranty. Priced and sold EACH - 1 in a box