mr mike hunt
Member
I was thinking about using LPC-60-1400 for the drivers, or is there a better option?
Aliexpress is legit? Guess Ive always been skeptical of that site.
Does Digi-Key ever have AB or Z4 bins?
I was thinking about using LPC-60-1400 for the drivers, or is there a better option?
is there a list somewhere of all the top bins for each dif colour temp of the 3070s?That is a question I can not answer. I do not know if it is worth it. I bet the AB bin will become more available over time and will come down in price. It's a tough call, and there's no way to distinguish the 2 bins by looking at the cobs, so some more shady dealers could be misleading people in some way. (like listing 2 color temperatures in the title, then putting AB, when AB is for the other color temperature, where it's not the highest bin) Only 3000k AB is the top bin.
not in my opinion no. The difference won't be worth $20 per cob. or do you mean $1 extra each so $20 more for 20 of the the ABs?Is paying an extra $20 for an AB bin worth it over a Z4 bin?
you could make one in a reasonably short amount of time, by just looking at the 3070 datasheet. Hint: each color temp rating has different "top bin" codes. They're not binned "that way."is there a list somewhere of all the top bins for each dif colour temp of the 3070s?
Nope.Is paying an extra $20 for an AB bin worth it over a Z4 bin?
I found some AB bins for $65 per COB, seemed way high. Z4 COB is around $40. So a $25 difference.
http://www.aliexpress.com/store/product/Freeshipping-1pcs-Cree-XLamp-CXA3070-led-74-117W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip/815938_2052849889.html
Is aliexpress a legit place to order from?
I think that Supra and some others did and they tested out good. Wait to see what other responses you get. "say's mostly Z4 bin contact first"I found some AB bins for $65 per COB, seemed way high. Z4 COB is around $40. So a $25 difference.
http://www.aliexpress.com/store/product/Freeshipping-1pcs-Cree-XLamp-CXA3070-led-74-117W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip/815938_2052849889.html
Is aliexpress a legit place to order from?
When you actually go to checkout there is an option for the two choices, I would say it is misleading not outright forgery....I am satisfied with mine. I bought mine the day before Supra ......actually a friend recently borrowed my diy lights because they have lux meter....just going by lumens it was 2-3% higher than AB listed....now this is 2nd hand because I wasn't actually there, but my buddy is 5k deep in HPS and he wants out and I let him test my cobs for me....win winThat is a question I can not answer. I do not know if it is worth it. I bet the AB bin will become more available over time and will come down in price. It's a tough call, and there's no way to distinguish the 2 bins by looking at the cobs, so some more shady dealers could be misleading people in some way. (like listing 2 color temperatures in the title, then putting AB, when AB is for the other color temperature, where it's not the highest bin) Only 3000k AB is the top bin.
Then buy Vero's. No comparison. $28Id rather order from someone in the US, not China if at all possible. But I don't want to get raped price wise. Maybe I will make calls on Monday and see when the US suppliers will have some in stock.
honestly, i think it's a more dynamic, case by case thing. It comes down to whether your value of the extra dollars is an acceptable trade for your measurable gains... even if that ends up just being an irrational personal preference gratified, resulting in personal contentment.Ali's legit. Whether the seller is legit is another story . Good catch ChurchHaze + MH!
I guess the only time you really need that highest bin is if your buying and running a shitload of CoBs. My question as always is where is the acceptable line? Just like sweet spots for running performance, which bin gives you about as much you can ultimately yield? Or maybe it just doesn't work that way .