Project: SUNLIKE LT1 board (Option for 660nm Red)

These were my thoughts exactly, having a second purely warm LT1 would be excellent.

I just ordered this flashlight on the aliexpress for only 38,5$ (reg price is 49$ + 2$ coupon frome seller + 5$ from aliexpress + sale discount) without batteries with international shipping :face_with_monocle:

I hope I will received it under 1 month :wink:

That’s a good price, I think I paid £52($72). Hopefully it is delivered quickly to you! :+1:

Interested!

Placed order for 3x boards :slight_smile:

nice :money_mouth_face:

I just sended paypal information to your email :face_with_monocle:

Good news, everyone!


:+1:

Cool.
How do you like it? (apart from the absence of SunLike leds)

My 15M Telegram: Contact @sunlikenews

Is Much better :stuck_out_tongue:

Can’t deny that is a very nice build :slight_smile:


my Sofirn BLF LT1 with Samsung LH351D LEDs spectrums (<1% flickering in all modes) when cold body:
















Finally…
v.0.99

Looks good from my preliminary look at it! This will be a metal core, non DTP pcb right?

1.6mm aluminium 2oz pcb

Sunlike does not have a thermal pad so no way to do DTP

The aluminum back will be enough.

I wasn’t expecting it to be DTP and with this many LEDs it doesn’t need it, but I think it can be done in something like the LT1. The head of the LT1 is electrically isolated from the body isn’t it? Theoretically it would be possible to be use the (+) pad as a dtp into the head but I think but there’s no point since the head is already at a limit heat dissipation wise with its lack of fins.

DTP is for leds with low thermal resistance and begins to matter at over 2A per led. In this setup the leds get just 100, maybe 200mA, and their internal thermal resistance is larger than the thermal resistance of the dielectric layer, so with DTP the biggest bottleneck is still there, inside the led.

ready! v.1.00 :face_with_monocle: