Color Temperature Tunable White-Light LED Cluster with Extrahigh Color Rendering Index

Table 2

The predicted and measured results of the white-light LED cluster at 𝑇_𝑎 = 45°C.

		Predicted results								Measured results
	CCT (K)	2703	2952	3431	3922	4490	4976	5715	6547	2719	3028	3458	3983	4537	5012	5723	6497
WW LED	𝐼𝐹 (mA)	273	268	260	250	239	229	214	203	273	268	260	250	239	229	214	203
Red LED	𝐼𝐹 (mA)	156	126	87	60	44	34	20	10	156	126	87	60	44	34	20	10
Green LED	𝐼𝐹 (mA)	27	56	88	115	140	160	198	213	27	56	88	115	140	160	198	213
Blue LED	𝐼𝐹 (mA)	0	12	53	90	129	154	179	210	0	12	53	90	129	154	179	210
	dC × 10^−3	+1.2	+1.6	−0.9	−2.6	−4.9	−5.2	−3.0	−3.3	−1.1	−2.6	−3.6	−4.5	−4.7	−5.4	−4.6	−4.9
	CRI	94	93	94	95	96	96	95	95	93	93	94	94	95	94	94	94
	R9	94	92	90	93	98	98	94	91	90	94	92	95	96	95	96	93
	R(9–12)	85	82	83	84	86	85	86	85	84	85	83	84	85	85	84	83
	R14	89	89	91	92	93	94	94	94	89	90	90	91	91	90	91	91
	R15	99	97	98	99	97	97	95	94	98	99	99	98	95	95	95	94
	Φ (lm)	261	260	258	254	250	245	239	232	256	250	262	254	245	244	234	228
	𝜂 (lm/W)	87	87	84	82	79	76	73	71	85	84	85	85	78	76	73	70