Product details Features: 1.This is the product is an accessory (LED light), no blind spot monitoring function.This accessory needs to be used with the blind spot monitoring system. 2.It is universal. It is suitable for all models. 3.The radar transmits signals to the lens lights to alert the driver of the surrounding traffic conditions. 4.There are two states, 1 is always on, 2 is flashing. 5.Installation position: In the rearview mirror. No need to punch holes, just fix it with glue. Specifications: Product name: Blind Spot Detection System Lens Light/BSD Lens Light Luminous color: Yellow/red for ur chioce The pattern effects are determined by the blind spot pattern of the original car lens, and have nothing to do with the LED lights. Type: Universal, applicable to all models. State: 1 is always on, 2 is flashing(The state is controlled by the signal output by the radar.) Sound: None (just a warning light.) Purpose: Safe driving: Support operating voltage: Applicable to 5V/12V, can generally be directly connected to the blind spot monitoring. Installation: No need to punch holes, just fix it with glue. Waterproof: Yes Working temperature:- 25+75(-13 167) Line length: Approx.150mm/5.90in Product net weight: 27g/0.95oz Quantity: 2 pcs The package: 2 pcs*Blind spot detection system lens light Installation Precautions: 1.Please pay attention to the picture of the LED light plug. If the plug is not correct,you need to cut the wire and then install the connection line. 2.If the connector does not match, please cut the wire and connect it by yourself, distinguishing the positive and negative poles. Installation position: In the rearview mirror, if the original car lens has no blind spot pattern, it is not recommended to buy. Note: Lenses are for display, not included in the package. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.