Katero kvalitetno ročno svetilko kupiti?

To understand lumens and lux, start with the concept that you can't SEE lumens. Lumens are a measure of the total light sent OUT by the flashlight.

What you SEE is the light that hits something, and bounces back to your eyes. THAT light that you SEE is referred to as LUX. The brighter the OBJECT looks to you, the higher the lux.
When a person says a light is "bright", they might mean it gives you high lux, or, high lumen values...or both....but, might not know why.

If you imagine that water is lumens, and its depth is brightness, so that the deeper the water, the brighter it looks to you...and you look down into a shot glass of water, say an inch deep...and see that brightness in that little glass...

...and then dump that shot glass of water into a kiddie pool, so it spreads out into a wide film of water....it will look "dimmer" but be the same number of lumens.

Humans suck at judging brightness in of itself...but you can see more with more lumens, but, most of the added vision is to the sides in a broad pool of light...and less is added to a central hotspot.

The hotspot generates glare, and the eye tells the brain that more glare = brighter....so people TYPICALLY will say a 100 L focused beam is "brighter" than a 1,000 L floody beam, as the floody one didn't glare and tell the brain how bright it was.

If you looked into the kiddie pool, and saw the dim light, you'd say, "that flashlight is dim".
If you looked into that shot glass, you'd say "that flashlight is bright!".

They both put out exactly the same amount of water/lumens though.

Lux is the lumens per square meter on the target....so, the more lumens you have, the easier to spread them out and still have enough lux to see targets.

If your beam spot is 10 square meters in size, you'd need ten times more lumens to have it look as bright as if it were focused down to only 1 square meter in size.

IE: For the same "brightness", you'd need 1,000 lumens to get your 10 square meters to look as bright as the 1 square meter would look with only 100 lumens.

This is why a guy with a 100 lumen light with a tight beam might say "its impossible to read with it because there's too much glare", but a guy with a 500 lumen floody beam can read the same page with no glare.

knap je 9. mar 2018 ob 12:10 izjavil:

ali je morda kdo spraševal za

NITECORE NU25 360LM XP-G2 S3 WHITE+CRI+RED Triple Output Headlamp USB Rechargeable Light Weight

https://www.banggood.com/NITECORE-NU25-...

with coupon code: df6a93 for 20% discount

Order Subtotal: US$39.99
Coupon Discount: US$8.00
Grand Total:US$31.99


LP

koyotee je 13. mar 2018 ob 12:00 izjavil:

Bo treba verjetno še trak zamenjati :)

FireSnake je 13. mar 2018 ob 12:57 izjavil:

gregor je 12. mar 2018 ob 19:49 izjavil:

Zanimivo branje...

Zgoraj sem se zmotil, seveda gre za 38 EUR in ne 81 EUR

Tukaj je komentar GB predstavnika

https://slo-tech.com/forum/t425393/p585...

Eno BLF Q8 pod 40€ še vzamem.
Potem bo pa dovolj. Jih je veliko še na poti.

Gearbest lahko neha s popusti, jaz sem se dodobra založil. Pač ne bomo več kupovali pri njih (bojo hitro nazaj uskočili s popusti).
Kot si rekel: pa kaj prišparali :)

FireSnake je 13. mar 2018 ob 13:00 izjavil:

Aja, včeraj dobil BLF A6:
https://www.banggood.com/BLF-A6-XPL-160...

Tega sranja pa ne kupovat.
Barvano je tako slabo, da se vse prstni odtisi gor vidijo.
Ne vem, če zadeva ne bo celo rjavela.
Bom malo poslikal in jih pobaral po zdravju.

Ima še kdo to zadevšno?

Ima pa 6 stopenj, in ima dobro pokrite stopnje. Na najvišji sveti, kot nora (in se tudi hitro greje, jasno).

FireSnake je 13. mar 2018 ob 13:04 izjavil:

Tamalo Emisar bi še jaz mogoče vzel.

Aar2rk je 13. mar 2018 ob 09:59 izjavil:

knap je 9. mar 2018 ob 12:10 izjavil:

ali je morda kdo spraševal za

NITECORE NU25 360LM XP-G2 S3 WHITE+CRI+RED Triple Output Headlamp USB Rechargeable Light Weight

https://www.banggood.com/NITECORE-NU25-...

with coupon code: df6a93 for 20% discount

Order Subtotal: US$39.99
Coupon Discount: US$8.00
Grand Total:US$31.99


LP

Jaz sem težil z rdečimi čelkami. Hvala za link. Imam Dve Nu10 in eno Nu30 na poti, čakam kakšen popust za HC65.

edit: zatipkal eno lučko

čakam kakšen popust za HC65

gregor je 13. mar 2018 ob 14:12 izjavil:

Aar2rk je 13. mar 2018 ob 09:59 izjavil:

knap je 9. mar 2018 ob 12:10 izjavil:

...

čakam kakšen popust za HC65

tvoja želja je uresničena, tukaj se začenja group buy

[FreemeGB] NITEC0RE HC65 1000lm Headlamp + 3400mah 18650
http://budgetlightforum.com/node/59488

seveda ne vem koliko bo cenejša, bo pa sigurno cenejša kot v redni prodaji, recimo okrog 60 usd

gregor je 13. mar 2018 ob 14:12 izjavil:

Aar2rk je 13. mar 2018 ob 09:59 izjavil:

knap je 9. mar 2018 ob 12:10 izjavil:

ali je morda kdo spraševal za

NITECORE NU25 360LM XP-G2 S3 WHITE+CRI+RED Triple Output Headlamp USB Rechargeable Light Weight

https://www.banggood.com/NITECORE-NU25-...

with coupon code: df6a93 for 20% discount

Order Subtotal: US$39.99
Coupon Discount: US$8.00
Grand Total:US$31.99


LP

Jaz sem težil z rdečimi čelkami. Hvala za link. Imam Dve Nu10 in eno Nu30 na poti, čakam kakšen popust za HC65.

edit: zatipkal eno lučko

čakam kakšen popust za HC65

tvoja želja je uresničena, tukaj se začenja group buy

[FreemeGB] NITEC0RE HC65 1000lm Headlamp + 3400mah 18650
http://budgetlightforum.com/node/59488

seveda ne vem koliko bo cenejša, bo pa sigurno cenejša kot v redni prodaji, recimo okrog 60 usd

pierch je 13. mar 2018 ob 14:10 izjavil:

Tnx, Ampak mi je tail magnet eden od featurjev, ki mi je pri tej všeč.

FireSnake je 14. mar 2018 ob 15:09 izjavil:

Ti vse zmodaš? :)

koyotee je 14. mar 2018 ob 16:38 izjavil:

Samael je 14. mar 2018 ob 16:16 izjavil:

Jaz sem te tudi mislil vprašati, zakaj bi dal 3x xpl v C8F (razen ce ldico ze imas)? To je tako ali tako v orig. C8F konfiguraciji. Kaj pa kaj v smislu 3x xpl-hi opcije? To bi znal biti kar fajn output, a?
Kakšna High cree Nichia 219c ne vem ce je smiselna za C8 dizajn.

Zato, ker se ne da zbirat tinte :)

Furbo je 15. mar 2018 ob 11:18 izjavil:

Zakaj bi se kdorkoli ubadal s prednaročili, ko je pa na tistoče podobnih lučk na voljo takoj in ceneje?