The Official Zebralight Thread

[id30209]

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Is that LED more throwy than the XHP70.3?

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Not much if any at all but unlike XHP70 it is true high CRI, 9080 and a bit rosy. I’ll try to find beamshoots of stock SC700 vs FFL707 i did

 

[id30209]

Found it.
Last summer i sliced&diced XHP70.3 6000K 90CRI and in the other i installed FFL707A 5000K.
I guess i don’t have to explain which one is XHP70.3 5000K…HI version is a better but still an egg-yolk

 

[Dark_Hater]

compared to the SC600, the SC70 is heavier and brighter, but does not have longer runtime

30g heavier
56% brighter on M1
15% less runtime on M1

I’m at work and have not had the time to compare the two so far but you just “slowed my roll”.

 

[this_is_nascar]

What am I missing? Why would I want a larger/heavier 21700 light that has less runtime? What's the point?

 

[defloyd77]

What am I missing? Why would I want a larger/heavier 21700 light that has less runtime? What's the point?

Does it have less runtime though? You're looking at level to level ie M1 vs M1 and not lumen level to similar lumen level.

SC600 M1 128 lumens 13 hours. SC70 M2 90 lumens 21 hours.

SC600 25 lumens 2.5 days. SC70 35 lumens 2.5 days.

SC600 11 lumens 5.6 days. SC70 13 lumens 6.5 days.

Pretty much across the board the SC70 looks to be the more efficient light with it's current posted specs.

 

[this_is_nascar]

We'll see. Time will tell. Different topic, but I wonder if this is a misprint. I'm all for safety, but I'd prefer having the choice if I want to run it hot or not. I know most ZL have PID for the top 2-levels, maybe 3-levels on some units, but now a third of the available levels (4 of 12) are under PID control? Maybe I just don't understand.

 

[Dark_Hater]

We'll see. Time will tell. Different topic, but I wonder if this is a misprint. I'm all for safety, but I'd prefer having the choice if I want to run it hot or not. I know most ZL have PID for the top 2-levels, maybe 3-levels on some units, but now a third of the available levels (4 of 12) are under PID control? Maybe I just don't understand.

A misprint one of two places because it says four levels but only three are noted above.

 

[jon_slider]

What's the point?

More Lumens at every corresponding level

The SC70 uses a wider LED so it will probably have a wider hotspot than the SC600.
I wonder if the extra lumens will result in extra throw. Will need to wait for candela tests.

 

[Romanko]

Just wrote to zebralight Customer Service:
"Would be nice to make 21700 version of SC65. Save the shape and design. Use nichia 519a led or something better but not xhp70.3."
A good idea?

 

[jon_slider]

21700 version of SC65. ...Use nichia 519a"

there are technical difficulties:

21700 wont fit inside the SC65 18650 body tube, the 21700 battery is 5mm longer than an 18650 battery. That is why the SC70 is longer than the SC600:

The SC70 body tube has the same 25mm outer diameter as the SC600, which means they drilled out the SC70 body tube so the walls are thinner than the SC600.

The SC65 body diameter is 20.8mm. It is too narrow to fit a 21700 battery.

519a wont work with the SC65 driver, because it is a 6V driver and the 519a is a 3V LED.

The 519a would work with the SC64 driver, but Zebralight decided to discontinue that model.

 

[Romanko]

21700 wont fit inside the SC65 18650 body tube, the 21700 battery is 5mm longer than an 18650 battery.

You didn't get it. I meant bigger version of sc65 with ability to use 21700.

 

[jon_slider]

 

[id30209]

So do we know when SC70 could be released?

 

[jon_slider]

Setting up my Emisar KR1AA and Zebra SC53c N to have similar mode spacing on AA Eneloop:

(all outputs measured on my own meter)
I set the KR1AA minimum to match the measured Zebra level 2. Then I set the KR1AA maximum to be close to the measured maximum of the Zebra level 12.

KR1AA mode spacing is generated automatically based on the minimum (floor 4/150), and maximum (ceiling 100/150) I had selected. The KR1AA automatically approximated the Zebra levels 8, and 10

On the Zebra I changed the default level 4 and 6, to use 5 and 7 instead. Because those were the closest match to the outputs generated automatically by the KR1AA.

Similarities in configuration of UI behavior, from Off:
Short Hold turns on at minimum output
Single Clic turns on at 17 lumens on the Zebra, and 19 lumens on the KR1AA.
Double Clic turns on at Highest output.

A Difference in configuration of UI behavior from Off:
Long Hold on the KR1AA cycles 6 modes from Low to High.
Long Hold on the Zebra cycles 3 modes in the order of Low, High, Medium

 

[jon_slider]

So do we know when SC70 could be released?

Zebralight listing is now taking preorders and says shipping in May:

 

[AMD64Brunette]

Still using my SC53c N.

 

[mega_lumens]

The new SC70 uses DLR for regulation. Is this tech exclusive to Zebra and what kind of improvements does it bring? SC600F is my daily EDC now. I’ll wait to see how this light is received by CPF. I wish we had warm LED options from Zebra.

 

[jon_slider]

I wish we had warm LED options from Zebra.

You can buy Zebras with warm LEDs from @Bob_McBob

 

[jon_slider]

I have been testing some 1.5V LiIon w USB-C in a Zebra SC53c N

The one issue w using the 1.5V LiIon in the Zebra is that H1 overheats.
Within the first 10 minutes at 238 lm the temp is 58C, that is an overshoot of the built in 50C thermal ceiling of the light..

The heat comes from the Buck driver on the battery. By the 25 minute mark temp is at 65C, which hurts my delicate hands. The heat is a non issue if the H1 output is kept below 5 minutes.

I then tested the Zebra on H2, Level 10, which started at 194 lm
Happy to report there is no overheating problem..
after 30 minutes, temp maxed out at 47C and the light was holding at 184 lm.

So imo, these 1.5V LiIon are a good match for an AA Zebra especially when used below H1.
With the added convenience of USB-C charging, and 6.3g less weight than a white Eneloop.

Flicker Index and Riple w 1.5V LiIon (green boxes on left) is less than w Eneloop or LiIon, w the selected G6 modes I use:

(middle yellow box is Eneloop, right red box is 14500)

 

[dc38]

I have been testing some 1.5V LiIon w USB-C in a Zebra SC53c N

View attachment 94025
The one issue w using the 1.5V LiIon in the Zebra is that H1 overheats.
Within the first 10 minutes at 238 lm the temp is 58C, that is an overshoot of the built in 50C thermal ceiling of the light..

The heat comes from the Buck driver on the battery. By the 25 miniute mark temp is at 65C, which hurts my delicate hands. The heat is a non issue if the H1 output is kept below 5 minutes.

I then tested the Zebra on H2, Level 10, which started at 194 lm
Happy to report there is no overheating problem..
after 30 minutes, temp maxed out at 47C and the light was holding at 184 lm.

So imo, these 1.5V LiIon are a good match for an AA Zebra especially when used below H1.
With the added convenience of USB-C charging, and 6.3g less weight than a white Eneloop.

65C! My man, that's basically 3rd degree burn territory lol...