be wary, if your reflectors look foggy then yes, they are smoking! lol
i’d have to go back and look at which bin i bought… got 300 from a CPF member once the new gen of HCRI LEDs came out…
used them in 2 S41 lights and have had no issues since install, even on endurance runs… but they don’t pack the same wattage the Q8 does.
i’m actually tempted to throw her in turbo with no lens (MAYBE no reflector tho that will reduce heatsinking) and let her run and see what happens… i have plenty of LEDs to spare. i COULD put the stock chips back in and see if they behave… kinda wishing i had a 2nd MCPCB to experiment with rather then reflowing over and over.
Nope, thats not me.
He was saying you can buy another mcpcb at that link. $5.89
The 219B V1 ’s have the low voltage of the 219C so will draw as much current, but they can not handle the direct drive, you will get over 6 amps each which is the max for 219C’s (In my Q8 with 219C’s I even used long thin led wires to get the current down to under 5A per led) but it is way overcurrent for the 219B that should idealy stay under 3A per led!!
Ups!
@Djozz
The last **groupbuy from Clemence was also for 219B V1 or?
Sorry I don’t know my LEDs what stand that V1 for?
I want to put them in the FW3A. As triple they should be good for 12A. Do I have a problem with a Samsung 30Q in TURBO?
I should somehow guess, better measure, the Amps.
Yes, I think all 219B’s still for sale are V1 versions, which are an upgrade of the original 219B but apparently not different enough to already be called 219C. The most significant difference as far as I noticed was a significantly lower Vf, but about the same output and same fairly low current handling.
In this test 219B and 219B V1 is compared: emitter test: Nichia 219B V1 4000K 93CRI
ok so, update… ordered a new driver, MCPCB and 8 of the Samsung LH351D 4000K 90CRI…
shame i coulden’t use the N219s but… live and learn, right lol
tnx everyone for the assist, i’ll update again once the new parts arrive. 
:::Edit::: On another note, has anyone dedomed a Samsung LH351D 4000K 90CRI yet? If so, resaults?
Not dedomed, I sliced a few. After slicing close to the phosfor I sanded the surface with very sand paper. The result is 20% light loSs, 3400K end colour temp, 93CRI and a very very good tint. The 20% loss is more than average, I wonder if it would be less if I did an even better polishing job.
Awesome, tnx… how was the beam pattern? was this on a single or multi chip light?
Single emitter lights, the beam is very good. The only big disadvantage is the light loss, the lh351d is found to be a realtively efficient high CRI led, you loose that advantage.
hmmm, ok…. well i bought enough to do a few mods so maybe i’ll exp with a couple. maybe a whitegas dedome.
tnx again
Anybody measured cd with xpl HI and spring bypass??
What is the recommended method for Q8 spring bypass when the light is used reasonably often? I just added some solder blobs at the top and bottom and ran short 22AWG leads between them.
That’s all you really need. Some wire bypassing the spring nothing special.
My Samsungs came in so here’s the pix….
Fence is 100 FT away. Camera settings are locked all around.
GT stock
Q8 Stock
Q8 Samsungs
Here you go:
GT stock
Q8 Stock
Q8 Samsung LH351D 4000K 90CRI
tnx jason!
Samsung LH351D looks very nice!