This post is a summary of specs of all the important lights in this thread. There will be numerous revisions because of additions, repeat measurements changing results, mistakes (mine), improved knowledge, changing opinions.
Specs from Simon:
Lens Multiple TIR choices: 60° Bead, 30 Bead, 10 Bead, 10 Clear (available from Simon, or possibly as gift at time of purchase). See comparison and beamshot discussion HERE
Driver
S21D: 8A Buck (first release, like mine, >90% efficiency - more than FET) or 12A FET (the batch sold in June of 2022)
S21F: Max output 8A, buck constant current
Nichia 219b 4500k
2000LM (LED size 1.5 mm)
CCT 4526k
Ra 96
R9 97
R12 79
Duv –0.00995
Nichia 519a 4500k
2600LM (LED size 2mm)
CCT 4500k
Ra 93.6
R9 82
R12 80
Duv 0.00091
Nichia B35AM 4500k
CCT 4454k
Ra 98
R9 99
R12 77
Duv –0.00503
Some other numbers posted by Simon in past here:
CRI for 219b 3500K sw35
CCT 3583K, Duv –0.00392
Ra 95.7, R9 82
CRI for 219b 3000K sw30
CCT 3027K, Duv –0.00535
Ra 96.6 R9 84
My Measurements I repeat measurements many times and make mistakes often enough so please don’t be surprised if you see changes or inconsistencies between posts from different times.) :
-
219b 4500K in S21D:
Output: 1680 lm
Throw: 170 m with 10° TIR, 113m with 60 bead
CCT 4486 Ra 95.8, Duv –0.0084 cold, –0.0096 hot (heat drops Duv 12 points) -
219b 4500K in Emisar D4V2:
Output: 1670 lm
Throw: Carlo 10621 Clear 140 m, Carlo 10622 Clear 137 m
CCT 4559 Ra 95.7 Duv –0.0087 -
219b 4500K in H2 Headlamp:
Output: 596 lm
CCT 4775 Ra 95.2 Duv –0.0135 (cold Turbo) to -0.0160 (hot Turbo) -
219b 3500K in Emisar D4V2:
CCT 3491 Ra 96.6 Duv –0.0045 -
219b 3500K in H2 Headlamp:
Output: 495 lm
CCT 3484 Ra 95.5 x 0.4001, y 0.3732 Duv –0.0067 -
219b 2700K in Emisar D4V2:
CCT 2710 Ra 97.6 Duv –0.0022
Output: 1350 lm -
519a 4500K in Convoy S21D:
Output: 1900 lm
Throw 157 m with 10° Clear TIR
CCT 4100 20% Brightness (increases about 150 points from 1% to 100% brightness, example 3743 to 3904), Ra 97.6, Duv –0.0010 cold, –0.0027 hot (heat drops Duv about 20 points). -
B35AM 4500k in Convoy M21B:
Output 1090 lm
Throw 263 m
CCT 4348 Ra 98.2 Duv –0.0050 35% brightness, –0.0036 0.1% brightness (with 2nd Opple) -
E21a in Emisar D4V2
CCT 4908 Ra 97.4 Duv -0.0077
Output 1520 lm
Throw:
Carlo 10622 Clear 170 m
Carlo 10623 Frosted 111 m (frosted optic makes “hotspot” (central area of beam) of D4V2 w/ E21a very dim) -
519a 2700k & 5700k in Convoy S21F Discussion starts around HERE
Important Note: I got two S21F’s: the first light belongs to the first batch that was released, and has 5000k and 2600k 519a, the second light belongs to second batch had 5700k and 2600k 519a.
Ra ~98 all CCT’s
Various CCT’s at Level 4
2600k (2 LEDs): Output 1130 lm, Duv –0.0010, no PWM (2nd light Duv -0.0002)
3000k (4 LEDs): Output 1180 lm
3300k (4 LEDs): Output 980 lm
3700k (4 LEDs): Output 900 lm, Duv –0.0072
4500k (4 LEDs): Output 1350 lm, Duv –0.0055 (2nd light -0.0075 output=1100)
5000k (2 LEDs 1st light): Output 1370 lm, Duv –0.0048, no PWM
5000k (4 LEDs 2nd light): Duv -0.0060 Output 1360 lm
5700k (2 LEDs 2nd light) Duv -0.0036
All CCT mixings that use 4 LEDs have PWM
Fixed 3600k CCT at Level 5 aka true Turbo, true 100%, etc.
4 LEDs, no PWM
Output 2050 lm, Duv –0.0071 (2nd light CCT 3800k Duv -0.0093)
External Temperature after 25 minute run-down from Turbo/Max brightness level, measured with IR gun pointing at the head area. Note that this is laying on plastic in a room without any cooling.
Convoy S21D —-> greater than 60° C
Convoy M21B —-> 59° C
Emisar D4V2 219b 4500k (with max thermal limit set to 55 C) —-> 49° C
Olight M2R Pro —->47° C
Sofirn SP36 BLF 4000k —->45° C
Convoy M21B w/ B35AM 4500k —->42° C
Both Convoy S21D and M21B have temperature regulation. It is set at 55 C in both lights. Emisar D4V2 also has temp regulation. The factory setting for upper thermal limit is 45 C, but I changed it in all my D4V2’s to 55 C.