Ok, -a thanks go out to member SKV89 for sending me four of Osram’s High-CRI emitter to test in the V1 BLF lantern prototype. (I use the V1 as the test-mule for measuring outputs, tints, etc of LEDs for lanterns)
The four LEDs sent to me for testing are the Oslon Square LCW CQAR.CC MQ-6U-L2 , MQ flux bin, 6U tint bin, and L2 forward voltage. MQ = 194 lm – 210 lm 6U = 2700K L2 = 2.90 – 3.00 V ) emitters.
They are a smaller substrate foot print than the 3535 XP sizes, ( more on the 3030 size, but they will flow onto a 3535 Cree XP board with no problems as i measured the center thermal-pad to be the same width, just the + & - pads are narrower on the Olsons.
- First positive i noticed is that the Osrams as nearly no angular tint shift, almost similar to the Nichia 119 or 219 series, but more efficient per amp input. (As almost all Cree emitters have very bad angular-tint shift, except for the MT-G2) the Samsung 351 series has almost as bad tint-shift, while Nichia and these Osrams has almost none, which is a great thing for a lantern to have full natural light tint consistency from all viewing angles.
For those wondering what angular tint-shift is, if your familiar with the horrible green tint caused by the original shallow-angled reflector Olight S20 then you know, or see this topic to understand: The CREE "Angular-Tint-Shift" flaw syndrome..It's causing brain damage.
The Lux output at 1 foot is comparable, (Samsung 351B > 42 on Medium , 167 on High) ( Osram > 43 on Medium, 165 on High)
as for tint to the eye, the Osram is much more “natural” . The Olson Square 2700K appears to my eyes as the closest light tint to what of a 25 ~ 40 watt Incandescent light bulb, probably due to the very slightly warmer tint, but much better tint emitted from all angles of the lantern, (less angular tint shift) than the Samsung 351B 3000K.
If i had a choice to have the production BLF lantern to have for the warn tint channel, it would be to use these Olson LEDS for the warm tints. I don’t know if they have a larger 5000K version, but the best 5000K tint LEDs to use for the cooler-channel is still the Samsung 351D 5000K, but definitely these Olson Square 2700K, as i really like the linear tint form the light angles.
As seen below, the greens & reds and ever other colors seem to just stand out much more natural from these Olson 2700K than it does from the Samsung 351B 3000K. (photos take with lantern on medium mode)
