Near gapless configuration of 4x E17A on a ceramic package with phosphors deposited in between the seams makes for an excellent "donut" free beam with most optics.
Designed for high power (8 watts) narrow beam directional lighting with broad range of CCT (from 2700K to 7500K) and available in various CRI (Rnn, R70. R8000, R9050, R9080). Combined with ER16S1 and ER20S1 MCPCBs, it can be overdriven up to 20 watts to make a powerful punch beam.
 
Data sheet:
	
Crxx (High output, high efficiency) 
	
TLCI 90 (For high quality television broadcasting)
	
R70, R8000, R9050, R9080 (low to high CRI for general lighting application)