We CN360 launched classic forever 4G21 LED series in 2015, in the past 5 years, it is popular sale all over the world. The good feedback of lower defective rate less than 0.01% and high quality is from our customers who sell it for 5 years. To offer the better installation and provide nicer appearance, we updated 4G21 LED series in March 2020.
Here are comparison between new version and old version:

Features as following:
1, Shorter lamp body dimension for better fitting.
2, More high-cost effective than old version.
3, White, amber, red colors are available, silver and full black body are available.
    Fog light models are available as well.

However, some customers asked us why we often update or launch new led car light?
They told us that their customers don't want to change the products frequently.
As we all know, led car light is electronic product like computers, mobile phones, rechargeable batteries, cameras, etc. Take iPhone as an example, why it updated every year? Apple officials says that the new version is more optimized and has a better experience than the old one. In other words, the competitiveness of science and technology promotes technology research and development, accompanied by the emergence of new technologies. Therefore, it's the same thing with our led car light upgrade.

Second, meet the needs of more customers such as easier installation, more competitive price, etc. (We are realy appreciate those customers who give us suggestions to upgrade.)

Third, it's very important that lightning delivery if you need the goods urgently. 

Last but not least, we want to say that after the Corona Virus, it will be peak seasons.  The most important thing is that most of customers will choose moderate price product, they will consume more rationally. So how to fast get more cash in this time? CN360 updated high-cost effective 4G21S LED lamp will be your better choice now. Certainly in the first month maybe will be difficult for us, but due to the fact that customers has less money they will not change their cars. This is good for aftermarket business, because they will upgrade their old led lights. That is to say, car spare part business will be good after the Corona Virus and we will have more occasions to sell led car lghts.

In addition to the above updated high-cost effective 4G21S LED lamp we mentioned, we have another all in one design moderate price M4 LED headlight bulb with shape the same as halogen bulb, it's easy to obtain new customers and keep old customers.

Hope CN360 suggestions will benefit you and welcome to discuss it together!
We never ever stop development!