GBGB, LD-51 dual cell XHP35 Boost Driver, Great Price!

please more info about this project/D01 extension tube …

I’d like to get in on this if it isn’t too late as well.

Thanks! Just ordered

It is too late to sign up. :stuck_out_tongue:
But gearbest have them already for sale, they (as far as I know) have 100 pieces in stock and since we have a confirmed 60 pieces there should be enough. I’ll send you the coupon code so you can order it.

Ordered thanks :+1:

Thanks! :+1: ordered two

Am I too late? I would like 2 pcs,
thanks

Thanks! I ordered a couple right away this morning. How many lumens will an XHP35 HI give at 1.5A? I’m guessing between 1300 & 1500?

1200 - 1300 lumens
(deduce from XHP50/70 djozz’s graph XHP50 = 1300 XHP70 = 1400)

You forget that the XHP35 is a 12V emitter, it would actually be equal to 3A in those LED’s.

Ordered, thanks!! :+1:

It should do around 2000 lumens at 1.5 if I’m not mistaking.

2 pcs

Already got them. Quick shipping from gearbest.

Forgot to mention (shame on me :person_facepalming: ) that the drivers dont come with a spring. So you have to solder your own spring on it.

What host(s) is everyone using theirs in? Mine have not arrived yet.

Can this driver utilise e-switch? because there is a soldering point with “Key” printed beside? (Presumably other lead would be soldered to ground but I am not sure, that would be 8.4V thru teeny tiny e-button)!

I would like to know this as well.

Can someone please answer my noob question?

So with 1.5A you get about 2000 lumens. But the XM-L2 can be driven at 6A with copper DTP, resulting in about 1600 lumens or so? A few hundred lumens less which is not so visible, but the smaller die results in (much) higher lux values with the XM-L2 or not? So what makes this LD-51 driver so interesting?

Cheers :slight_smile:

I’m not sure of the exact numbers but you have to convert the power usage to watts to get a better perspective. If the XHP35 is a 12 volt led, 12V x 1.5A = 18 watts.
XML2 leds will only go to a max of 5 amps these days. 5A x 3.5V = 17.5 watts.

I suspect that this is pretty much comparable to what I did. With a comparable efficacy this results in higher lux values for the smaller die XM-L2 with comparable lumen values. So what makes the XHP35 emitter interesting?

Its lumen output /the auto industry (mainly due to its working voltage)/oveall 12v applications: at 12v you can straight use it with a siple resistor as a driver