As a general rule of thumb, cooler tints are more efficient and therefore brighter than warmer tints, all other factors being equal. This is an effect of LED physics and applies to all manufacturers.
The reason warmer tints still sell is that many people prefer them and are willing to lose a few lumens in exchange for light that looks nicer to them.
In my opinion the biscotti driver is worth it, no configuration blink in low mode, and many more mode groups to choose from, moonlight mode, which is absent in the 3/5 driver
Biscotti is miles better than old UI and well worth spending a few extra pennies on. Don’t forget that you can get Biscotti in any S2+ on request at Convoy’s AliExpress store.
The blf A6 with 30q is on flash deal at Banggood, which makes it very interesting, i was thinking of buying it as well, but almost holiday so bad timing for me.
I have enough S2+ es now. Especially when the clear (from GB finally) arrives. (Still waiting)
Generally, shipping of Banggood is way better then GB.
(A bit off-topic, but…) It’s also about what you’re illuminating. A cool-white LED is brighter than a warm-white LED, but if you shine that light on a red towel you’ll notice that the warm-white light shows up much brighter. That’s because the warm-white light has more spectrum in red, even though overall it’s dimmer.
If you illuminate white-paper, the cool white LED will be brighter. That’s how it’s measured. But that’s not how the natural world is structured. If you’re in a mature forest, there will be a lot of brown in tree trunks and leaf litter. Brown (which is really a dim orange), is better illuminated by warm tints. So your warm-white LED light may actually look brighter than a cool-white LED light.
On green grass, the cool-white will look brighter. Cool white is optimized for blues and greens. Warm white is optimized for reds, orange, and yellows.
Ignoring brightness, warm-white LEDs usually have higher color rendition than cool-white. Cool-white LEDs are generally around 65 CRI, while neutral is around 75 CRI. Of course, you can get premium LEDs that give much higher CRI, such as a Nichia 219 LED (my favorite). But you pay a price for higher CRI, with usually much less brightness.
The only thing I don’t like about that version (firmware) of the Convoy S2+, is the limited mode selections (and the blink on low). But, it’s cheap, so if you’re okay with the modes, then it’s a great buy. There’s versions with updated firmware, but they’re more expensive. Also the BLF A6, but it it more expensive too.
At that price, even if you decide you don’t like it, you’re not out much.
the only thing i hate about S2+ is the blink on low to change group with standard firmware BLF A6 is superior, get S2+ with bisscotti or flash it yourself.