Partsam 31mm Festoon LED Light Bulbs for Interior Lights Map Dome Door Courtesy Light Bulbs DE3021 3175 -Blue 2Pcs SPECIAL 31mm FESTOON LED BULBS SET, including 2Pcs DE3175 festoon LED interior map dome light bulbs, ideal for Chevrolet, Mazda and many other cars. LED Type: DE3175 12-3528-SMD LED Chips. LED light color: Blue. WIDE APPLICATION RANGE: can fit well for map light, dome light, license plate light, side door courtesy, cargo light, or trunk light etc. (Depending on the model of your car, some fit more than 1 position, please make sure the double ended socket type and the length ( Approx 31 mm ) of this bulb can fit your car, Please double check user manual or contact the customer service before purchase.) IDEAL REPLACEMENT FOR ALL 31mm FESTOON LED BULBS: 31mm festoon model type is easily integrated as a replacement for the following bulb model numbers: 3021 3022 3175 6428 6430 DE3175 DE3021 DE3023 etc. ENERGY-SAVING, LOW TEMPERATURE, very faster on or off response time and vibration resistant. Low power consumption, long-lasting Life, great replacement car LED interior dome light, map light bulbs. IMPORTANT NOTICE: If the LED does not light up, simply rotating it 180 degrees (reverse the polarity). 100% Satisfaction Guarantee, please feel free to contact us if you have any further questions! Partsam all started in the summer of 2013 with a simple, with bold idea: makebetter auto parts. In other words, not just a better auto parts - a better way of doing things. A new kind of auto company that works hand in hand with users to do something amazing, something meaningful.Now PARTSam has grown tremendously to become one of the leading platforms of e-Commerce in the aftermarket auto parts industry. Inventory Management/Warehouse &amp; Fulfillment  With our warehouse located in Milpitas, California, we take care of the inventory management for our products. This saves manufacturers space, time, and headache. Automated Multi-Channel Sales  We successfully advertise our products on multiple platforms and maintain top-rated healthy seller accounts, which keep customers drawn to our products. We arecontinually expanding our customer base as we add more sales channels. Professional Seller-Customers will deal directly with us in regards to issues and concerns they experience with the products. Manufacturers will not have to deal directly with the individualcustomers, but will experience the benefits of their business, which is the typical win-win cooperation. Light Color: Blue Base:28mm Input: 12V Number of SMD: 12-3528-SMD Package Content: 2 x 28mm Festoon LED Light Bulbs Faster response time,No incandescent delay Exterior usage: License plate lights, tail lights Interior usage: Map lights, dome lights, cargo lights, courtesy lights Made with bright light bead,Stable light body structure, not easy to damage or disintegration 7440 7441 7443 7444 992A If the LED does not light up, simply rotating it 180 degrees (reverse the polarity) Fits the car models, please see compatibility chart;