LED grow lights come with different types of diodes (LED chips). Here is a detailed explanation of some LED chip from the manufactures
Here are some of the most commonly used LED chips along with their explanations and manufacturers:

1. Cree Chips: Cree is a leading manufacturer of high-quality LED chips. They offer various types such as XP, XHP, XT, and XML series. Cree chips are known for their high efficiency, excellent color rendering, and long lifespan.
2. Epistar Chips: Epistar is a well-known LED chip manufacturer based in Taiwan. They produce a wide range of LED chips that are widely used in different applications. Epistar chips are known for their affordability and good performance.
3. Bridgelux Chips: Bridgelux is another popular manufacturer known for its high-quality LED chips. They offer a range of options such as Vero, EB Series, and RS Series. Bridgelux chips are known for their excellent color quality, high light output, and reliability.
4. Samsung Chips: Samsung is a leading manufacturer of consumer electronics, including LED chips. Their LED chips are known for their high brightness, energy efficiency, and reliability. Samsung offers various series like LM301B, LM301H, and more.
5. Osram Chips: Osram is a well-established manufacturer of optoelectronic products, including LED chips. They offer a wide range of LED chips with different specifications and performance characteristics. Osram chips are known for their high efficiency, brightness, and long lifespan.
6. Nichia Chips: Nichia is a Japanese company renowned for its high-quality LED chips. They are known for their innovations in LED technology, such as the development of blue and white LEDs. Nichia chips offer excellent color rendering, efficiency, and consistency.

It's important to note that each of these manufacturers offers a variety of LED chips with different specifications, including color temperature, color rendering index (CRI), forward voltage, and thermal resistance. The choice of LED chip depends on the specific requirements of the grow light application, such as the desired light spectrum, power output, and efficiency.