The 4 x 110 Volt 348mm 1400 Watt 1.4 kW Fits Rhino R7S Ruby Red Infrared Heater Bulb is a must-have item for any serious custom RC car enthusiast. This bulb is designed to be used with the widely popular Rhino R7S battery packs, ensuring a perfect fit and easy installation. The 110V rating makes it safe for most RC car applications, while the 1.4kW power output provides ample heat for both racing and static projects. Its compact size, measuring only 348mm, makes it perfect for tight spaces, such as under the hood of a sports car or within the frame of a top-quality RC airplane. The Ruby Red color is a standout choice, adding significant depth and realism to any RC vehicle, especially during nighttime use. Overall, this bulb is not only a powerful and efficient heat source but also an essential addition to any RC modeler's toolkit.