8 Inch LED Downlights is can be detachable in 2 parts. For 8 inch LED Downlights, we can do thw watt from 10W to 40W. 10W, 15W, 18W, 30W, 40W are the conventional product. 8 inch 30W are the popular one.
The 8 inch downlight use Samsung SMD5630 chips with Philips or Lifud driver. Use high quality PC cover, and adopts precision die-casting aluminum for the module, nice heat dissipation.
Dimmable function can also provide. White, black, silver corlor for option. High CRI >80Ra. High PF >0.95. 100lm/W.
For the 8 inch Led Downlights, it can also up to IP54 protection level. All the LED Downlights is CE RoHS approved. 8 inch LED downlights is easy to transport and install. 185-210mm hole size is suitable for 8 inch LED downlights.
8 Inch LED Downlights 8 Inch LED Downlights, 8 Inch Dimmable LED Downlights, Aluminum 8 Inch LED Downlights, LED Recessed Lighting Downlight SHENZHEN KEHEI LIGHTING TECHNOLOGY CO.LTD , https://www.keheiled.com
Among them, C70 is the newly introduced COB package LED of Ricoh Optoelectronics. It uses the patented copper substrate packaging technology of R&S Optoelectronics. It not only has high luminous efficiency, fast heat conduction and excellent light quality, but its price is also more competitive in the market.
COB series product specifications are as follows: in line with ANSI MacAdam ellipse 4 step CCT specifications; general light efficiency of 90 to 110 lumens / watt or more; color rendering CRI (Ra) greater than 80, light output angle up to 160 degrees, module forward drive voltage Can be controlled in a very small range, is the best choice for a variety of LED lamps or bulb lighting. At the same time, in order to develop and design LED lamps with simplified and low-cost power supply, Ricoh Optoelectronics has also successfully developed 110V/220V high-voltage driving COB light source for C70/C90, which is currently limited by space and cost. Lighting products have the best application choice. 
In addition, this test is required to pass a lumen maintenance rate of 94.1% at a more severe 105 °C test environment than 85 °C. This also means that the two LEDs can maintain 70% lumens after 35,000 hours of operation, which is suitable for any commercial lighting application in the world.
According to the research, the new COB series has a very good light color effect in indoor lighting. For example, bulbs, projection lamps, downlights, etc., have no dark areas, and can be supplied in a variety of angles. 
With the assistance of Bay Area Compliance Laboratory Corp., a well-known international certification body, Taiwan's Ricoh Optoelectronics has two LED-H28 and C70 series packages and LM that has passed the US Energy Star. -80's 6000 hour test verification.