Recent content by Lowdown Lenny

Time for a little update From 24th From 27th (3 days later, day 2 since flip) 30 cm / 1 foot tall Today - 5 days later, day 2 flower, day 7 since flip 37 cm - 1' 2"

Luxeons 48% is at 350 mA. It drops when run at say 700mA. But because the epiled is 42 mil, it drops off alot faster when run at higher current - check the graphs on the datasheet. If you compare them at 700 mA, none of them are anywhere near 48% but the luxeon should be like 3 times better if...

Word is, the aquarium model from Cidly is much better quality and can have more white leds at roughly the same cost bouncin, the seller has no idea. Are those words from Cidly or the middleman on dhgate? 2700k-18000k is just the range they offer, one white led has one color temp :)

There may be a newer version, that was just the newest 42 mil I could find. It's just the spec sheet that's old - it's normal with some time between spec sheets and actually selling thousands of units (not three years though). Guess I'm saying it's not necessarily outdated :) If the newest...

Strange, looks to me like you've got a EPILEDS BN-R4242E-A3 (I hope it's ok to link spec sheets), which would be 650nm at most. The only 660nm epileds I seem able to find is BH-C4242D-A1 I'd say, with no numbers for straight comparison, the epiled is about 1/3 to 1/2 the power of the luxeon...

Small company called Yxyled, I'm not sure if they are made inhouse or they're having them made at macroled or something else. Either way, I'm a happy customer :) Paid ~$51 per chip and driver with shipping to EU, had to buy 5 though.. and pay vat and fee.

Thank you PSUAGRO and PetFlora @PSUAGRO: I'm 100% positive. A normal chinese led even if high bin etc still looks exactly like the cheap ones Notice the pattern on the LED die itself, this is the unique EPILEDS 42 mil pattern. 42 mil as in 2w diodes, max ~700mA. EPILEDS 45 mil is the other...

Hey guys, big fan of LED point light source here :) Most newish LEDs have what's called lambertian radiation, meaning perfect spread. All Crees, Bridgeluxes and some Epistars have it. It simply means the light spreads perfectly unlike older and most chinese diodes which needed secondary optics...

Hello folks, In this thread: Custom made 57w chinese multichip / COB with Epistar and Epiled I have been growing a couple of years, mostly with LEDs except for the first couple grows. I want to thank the users of this forum, I have quietly gathered lots of useful information from here -...