Name: cob48SMD SMD car light board Voltage: 12V DC (general car output voltage) Uses: reading lights, dome lights, trunk lights, room lights, etc. Instructions for use: There is a 3M adhesive sticker on the back for easy fixation (to avoid the lamp board moving inside the lampshade). Performance: 1. Energy saving: It is 1/10 of the energy consumption of traditional halogen lamps, which can better protect the car circuit 2. Long service life: 30000-50000 hours of service life Features: 1. SMD LED, low power, high brightness, energy saving and environmental protection. 2. This product can be used for reading lights in the car, trunk lights, etc., DIY at will It can replace double-pointed lights with lengths of 31mm, 36mm, 39mm, 41mm, etc. It can also be equipped with T10 socket and BA9S bayonet connector, which can directly replace the ordinary glass lights of the original car, and it is easy to install 3. Lighting without delay. 4. The PC board of the LED fixed frame adopts a 1mm thick double-adhesive panel and imported heat-proof insulating silica gel; 5. Green environmental protection light source, comfortable and convenient. 6. High brightness, strong anti-vibration, low temperature rise, is a new generation of solid-state light source Installation: 1. The diameter is the same as that of traditional light bulbs, which can be directly replaced with traditional light bulbs, no need to modify the circuit 2. When installing, refer to the product dimensions and pay attention to the space of the installation location. Press carefully and do not squeeze the LED chip to avoid damage. 3. Not suitable for 24V large trucks and buses, please check carefully before installation 4. The LED has positive and negative poles. If it is not bright, you can change the direction (that is, change the electrode)