wweiss
Enlightened
For your consideration as to curiosity regarding the effects batteries have on some common lights.
I used my high-end Luna Pro light meter (I do professional architectural photography on occasion) to measure the beam centers of my lights all on turbo or highest modes to see what difference batteries made to the output. Nothing too laboratory, but done in my cellar under identical conditions for each. The AW's jack up the Lux in a few cases - the S2R Baton seeing a dramatic difference in the field. In the case of the Alpha, the AW's output is less. The equivalent values shown in Lux & Foot Candles (fc) are approximate. Meter was set to ASA 50 with diffuser to corrolate Lux with EV & Foot Candles.
Note: All measurements on Turbo/High @ in a centered beam distance of: +- 16.5' from the LED.
Predator Pro v3:
Orbtronic 3400mAh - EV 6.0 (350 Lux / 32fc)
AW 3.7V 800mAh IMR 18350 - EV 7.0 (700 Lux / 65fc)
Streamlight ProTac 3:
3, RCR123's - EV 7.0 (700 Lux / 65fc)
Olight S2R Baton:
Orbtronic 3400mAh - EV 4.0 (88 Lux / 8fc)
Olight 3.6V 3200mAh - EV 4.3 (100 Lux / 10fc)
2, AW 3.7V 800mAh IMR 18350 - EV 4.6 (130 Lux / 15fc)
Alpha Ready Made MCE:
Orbtronic 3400mAh - EV 4.0 (88 Lux / 8fc)
2, AW 3.7V 800mAh IMR 18350- EV 3.6 (55 Lux / 5fc)
Zebra light SC600w III HI:
Armytek 3.7V 3200mAh - EV 6.0 (350 Lux / 32fc)
Manker 3.6V 2600mAh - EV 6.0 (350 Lux / 32fc)
Thrunite TN12 2016:
Orbtronic 3400mAh - EV 5.5 (230 Lux / 22fc)
2, AW 3.7V 800mAh IMR 18350- EV 5.5 (230 Lux / 22fc)
Raybek TL1000:
Orbtronic 3400mAh - EV 5.5 (230 Lux / 22fc)
2, AW 3.7V 800mAh IMR 18350- EV 6.0 (350 Lux / 32fc)
Helotex G4:
Orbtronic 3400mAh - EV 5.3 (210 Lux / 18fc)
2, AW 3.7V 800mAh IMR 18350 - EV 6.0 (350 Lux / 32fc)
Thrunite 32UT:
3, Nuon 3.6V 2600mAh - EV 9.0 (2800 Lux / 260fc)
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Note: Please excuse the wimpy Nuon batteries used for the TN32UT - I do not have three of any other same kind to load into this thrower...
EV Defined (WPedia):
In photography, exposure value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV (for any fixed scene luminance). Exposure value is also used to indicate an interval on the photographic exposure scale, with a difference of 1 EV corresponding to a standard power-of-2 exposure step, commonly referred to as a stop.[1]
I used my high-end Luna Pro light meter (I do professional architectural photography on occasion) to measure the beam centers of my lights all on turbo or highest modes to see what difference batteries made to the output. Nothing too laboratory, but done in my cellar under identical conditions for each. The AW's jack up the Lux in a few cases - the S2R Baton seeing a dramatic difference in the field. In the case of the Alpha, the AW's output is less. The equivalent values shown in Lux & Foot Candles (fc) are approximate. Meter was set to ASA 50 with diffuser to corrolate Lux with EV & Foot Candles.
Note: All measurements on Turbo/High @ in a centered beam distance of: +- 16.5' from the LED.
Predator Pro v3:
Orbtronic 3400mAh - EV 6.0 (350 Lux / 32fc)
AW 3.7V 800mAh IMR 18350 - EV 7.0 (700 Lux / 65fc)
Streamlight ProTac 3:
3, RCR123's - EV 7.0 (700 Lux / 65fc)
Olight S2R Baton:
Orbtronic 3400mAh - EV 4.0 (88 Lux / 8fc)
Olight 3.6V 3200mAh - EV 4.3 (100 Lux / 10fc)
2, AW 3.7V 800mAh IMR 18350 - EV 4.6 (130 Lux / 15fc)
Alpha Ready Made MCE:
Orbtronic 3400mAh - EV 4.0 (88 Lux / 8fc)
2, AW 3.7V 800mAh IMR 18350- EV 3.6 (55 Lux / 5fc)
Zebra light SC600w III HI:
Armytek 3.7V 3200mAh - EV 6.0 (350 Lux / 32fc)
Manker 3.6V 2600mAh - EV 6.0 (350 Lux / 32fc)
Thrunite TN12 2016:
Orbtronic 3400mAh - EV 5.5 (230 Lux / 22fc)
2, AW 3.7V 800mAh IMR 18350- EV 5.5 (230 Lux / 22fc)
Raybek TL1000:
Orbtronic 3400mAh - EV 5.5 (230 Lux / 22fc)
2, AW 3.7V 800mAh IMR 18350- EV 6.0 (350 Lux / 32fc)
Helotex G4:
Orbtronic 3400mAh - EV 5.3 (210 Lux / 18fc)
2, AW 3.7V 800mAh IMR 18350 - EV 6.0 (350 Lux / 32fc)
Thrunite 32UT:
3, Nuon 3.6V 2600mAh - EV 9.0 (2800 Lux / 260fc)
Note: Please excuse the wimpy Nuon batteries used for the TN32UT - I do not have three of any other same kind to load into this thrower...
EV Defined (WPedia):
In photography, exposure value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV (for any fixed scene luminance). Exposure value is also used to indicate an interval on the photographic exposure scale, with a difference of 1 EV corresponding to a standard power-of-2 exposure step, commonly referred to as a stop.[1]
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