PattPickle
Newly Enlightened
I'm hoping to help with several recent questions in this thread:
It looks like Fraz is moving toward an adjustable tail piece to shorten or extend the internal length in order to work with different battery lengths. I haven't seen it in their 18350 lights yet.
As far as LVP goes with this light - Wouldn't the LED just stop lighting when the battery voltage drops below the forward voltage of the LED? I've been wondering this for a while so I hope someone more knowledgeable than myself can clarify.
For mcpcb size Fraz uses either a 16mm single emitter or a 20mm single emitter depending on the flashlight model. Whether you use an mcpcb with a 3535 or 5050 pad depends on the optic. For example the lights with the 20mm optic works with 3535 mcpcb's or smaller. An optic change is needed to use a 5050 mcpcb. The optics are cheap and quickly available from Led Supply.
The QTC the lights ship with usually won't allow direct drive without over-tightening the head. It stops a bit short. I have some material similar to QTC that allows full direct drive but it doesn't work as well for the low output levels.
I'm going to make a video here soon showing an emitter change and how to add solder to the mcpcb. I wonder how well it would work to just add solder to the brass contact points instead of the mcpcb?
All of their lights call for a 3v emitter. A model that fits two CR123's would be fun for a 6v emitter option though...
I also wanted to mention my current favorite battery option for the 18350 size lights. The Nichia 219b is my favorite LED but most 18350 batteries are a bit high in amperage for this emitter so I ordered a couple of these:
These claim 2 amps which seems to be a nice, safe range for the 219b. Illumn has the previous generation of this battery in stock but notice it has less storage and slightly lower amperage. Brightness is just what I need with this battery and the protection circuit adds some peace of mind. QTC works really well with this battery as well.
Matt
It looks like Fraz is moving toward an adjustable tail piece to shorten or extend the internal length in order to work with different battery lengths. I haven't seen it in their 18350 lights yet.
As far as LVP goes with this light - Wouldn't the LED just stop lighting when the battery voltage drops below the forward voltage of the LED? I've been wondering this for a while so I hope someone more knowledgeable than myself can clarify.
For mcpcb size Fraz uses either a 16mm single emitter or a 20mm single emitter depending on the flashlight model. Whether you use an mcpcb with a 3535 or 5050 pad depends on the optic. For example the lights with the 20mm optic works with 3535 mcpcb's or smaller. An optic change is needed to use a 5050 mcpcb. The optics are cheap and quickly available from Led Supply.
The QTC the lights ship with usually won't allow direct drive without over-tightening the head. It stops a bit short. I have some material similar to QTC that allows full direct drive but it doesn't work as well for the low output levels.
I'm going to make a video here soon showing an emitter change and how to add solder to the mcpcb. I wonder how well it would work to just add solder to the brass contact points instead of the mcpcb?
All of their lights call for a 3v emitter. A model that fits two CR123's would be fun for a 6v emitter option though...
I also wanted to mention my current favorite battery option for the 18350 size lights. The Nichia 219b is my favorite LED but most 18350 batteries are a bit high in amperage for this emitter so I ordered a couple of these:
CR123A P1634U2
* This model could replace Panasonic or GP CR123A * Quality Protected Li-ion Rechargeable Battery * Brand: KeepPower * Part No.: P1634U2 * Maximum Size: Max. 16.8*34.9mm * Nominal Voltage: 3.0V * Nominal Capacity: 1000mAh * Weight: 19.0g
www.keeppower.com.cn
These claim 2 amps which seems to be a nice, safe range for the 219b. Illumn has the previous generation of this battery in stock but notice it has less storage and slightly lower amperage. Brightness is just what I need with this battery and the protection circuit adds some peace of mind. QTC works really well with this battery as well.
Matt