Mr. Grin,
That is very interesting LEP module. Where did you get that from? It died in the name of science?
3.5A seems like a lot of current for LEP. I don’t know weather you are familiar with VCSEL laser technology? Very strong source of laser 850nm IR light(visible with nigh vision equipment). IR Light with small 15-20 mm aspherical lens has more than 1 mile of throw with possibility of zoom in or out.
VCSEL draws around 1.5A of current and are available in 3535 footprint which of course means that we could use classic 17-20mm drivers and DTP MCPCB. And it is cheap.
I want to say that above mentioned is “the right way” in which LASER technology should develop. Giving the best performance at lowest current draw as possible. Without strange looking long modules that are hard to fit or loosing zoom function with flashlights.
It is an aliexpress module, supposed to be 840ml but I don’t think so there is not enough current. it trips but not completely above 3.5amp then comes back on when the current drops. W30s do the same so I think there might be some sort of over current protection in the laser itself. I haven’t been able to completely destroy a module yet even a W30 at 10amp didn’t smoke. It will sustain output for a split second then drops. This module could easily have another laser to pump the phosphor if it can withstand the laser energy.
Amutorch makes the BT55, a zoomable LEP. I picked one up from Neal’s Gadgets, and its quite amazing. The zoomed out beam is not uniform, there is a bright rainbow around the outside and the middle of the beam is dimmer and blueish. Still, it has its uses, and to me makes the light more flexible. The zoomed in is pure white, seems to go forever. The manufacturing and finish are top notch. Also reasonably priced. Keep an eye on Neal’s, they go in and out of stock fast.
Doughnut hole is present when zoomed out. So massive loss of candela happens out of that 1.5mcd laser. I would like to play with mechanism and improve that if possible.
Edit:
To investigate little further it seem it has classic zooming function with rotation of flashlight head while Laser LEP module is fixed in neck section and looks something like that round Yinding LED from Aliexpress.
This is the module in BT55: WBJ29 123 (recorded through lens of mentioned youtube video):
I am pretty sure that I could improve that nasty hole with right combination of precoolimator lens. Maybe I would loose some candela in zoomed in mode but I would significantly improve zoomed out mode and that nasty doughnut hole.
So we need mentioned LEP WBJ29 123 module. If someone finds please post here.
Lumintop Thor3 is quite budget friendly and able to get 1.5Mcd. I have to use binocular to appreciate what LEP can do.
I recently got one Thor3, now I plan to get another 2 to make a 3-LEP 1000lumens 4+Mcd flashlights toy.
Might end up with a Convoy L8 in the middle, 3 LEP surrounding it, so total would be 5000 lumens 4+Mcd flashlights toy.
Hi guys, as you are after the ultimate LEP light’s, I just thought I’d chime in and mention a light I did a little review on. It’s called a WLL-X30 that has a 30watt module, it’s sold in Oz on eBay out of Victoria from a company called LimeLight.
After I did the first measurements, I bought a better meter (one they recommended) and got 7,290,000cd measured @ 30 meters.
My Acebeam W30 got 1,566,000cd @ 30 meters. Review
For the record, I was only given $100 off the price of the X30 - that’s all and had to send the others back, not much for dicking around for a week or more. I did buy the X75 earlier, thinking it would cream the W30, but it didn’t. I tried to explain to the seller that most manufactures lie to get sales (mostly out of china) he thought I was being racist. I offered to review the X-30, so he eventually asked if I could review all. after he trusted me, he finally believed what I meant after watching this and agreed. shakehead
Not sure that is a good idea they get hot and the output drops very quickly. The sense resistor has been changed it is an easy mod. The lens not so easy, when I get my lathe back up and running I will build a lens that screws into the bezel.
The blue comes from the lens depending on how it is focused can change the colour. There are 3 lens including the w30 secondary.
This is so I can get the dimensions for a lens before I build a light.
2.8Mcd after the light had heated up. At 1min reading was 4.3Mcd. The runtime until the indicator LED turns red is 20min.