Product Description 1. Universal voltage polarity automatic conversion: This tool battery lamp has unparalleled compatibility and a wide voltage input range from D.C 12V to 85V. The built-in intelligent chip can automatically detect and convert polarity without the need to distinguish between positive and negative poles. This ensures compatibility with various power tool batteries, is easy to operate, worry-free to use, and can effectively prevent damage caused by incorrect connections. 2. Adjustable pin pitch, strong compatibility: This work light adopts an adjustable connection pin design, aiming to achieve maximum versatility. The pin pitch can be freely adjusted between 20mm and 41mm, making it compatible various lithium batteries of power tools with positive and negative metal contacts located above the interface. This adaptability ensures a and stable connection between different battery models. 3. High-efficiency heat dissipation design: Ensure sufficient light in the working area, eliminating the worry of overheating. Our innovative design incorporates hidden ventilation holes, which are carefully arranged to significantly enhance the heat dissipation effect. This outstanding heat dissipation management system helps maintain stable performance for a long time and extends the service life of the light fixtures. 4. High-quality structure and compact size: This light lamp is made of high-quality ABS plastic and is specially designed for practical use in harsh environments. It is compact in size, approximately 10 cm (3.94 inches) in height, 7 cm (2.76 inches) in width, and 6 cm (2.36 inches) in depth. It is easy to install and carry, and suitable for use anytime and anywhere. The fashionable black and grey appearance can be perfectly matched with most tools. 5. Multi-functional light, meeting all kinds of needs: Transform your power tool batteries into powerful and portable light sources. Whether you are working in a dimly lit environment, during a power outage, or need additional light to complete delicate tasks, this light lamp can provide bright and reliable illumination. Its easy installation and sturdy design make it an essential accessory for professionals and DIY enthusiasts. Packaging list 1 x tool battery light lamp 【Universal Smart Polarity】No need to worry about positive/negative connections! This work light features auto-detecting polarity and works with 12V-85V power tool batteries (with most brands). 【Adjustable Battery Connector】Fits most lithium tool batteries effortlessly! The flexible pin spacing (20mm-41mm) securely connects to metal contact interfaces. 【Cool & Stable Performance】Built to last with advanced cooling vents! The hidden heat dissipation design prevents overheating. 【Portable】Made of heavy-duty ABS plastic, this compact light (3.94"x2.76"x2.36") survives rough handling. 【Bright & Multipurpose】Turn spare batteries into powerful LED lights! Ideal for blackouts, car repairs, camping, or detailed tasks.