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primary light vs backup light...

primary light vs backup light...

Post Number:#1  Postby SuperKingKong® » Tue May 27, 2008 3:58 pm

dear guys....

hmmm... just wondering.. how do u classified lights? .. how to differenciate between primary lights and backup lights?

must primary lights bigger than backup lights physically? or must primary lights can tahan longer than the backups? or must primary be brighter than backups? what if my small conventional "torch like" light is brighter than my big 8C cells pistol grip light?

any characteristics? :)

any opinions will be much appreciated... thanks :)
cheers...
"Dive Like Hell & You'll Be There" (it's so true... i personally have experienced it)
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Re: primary light vs backup light...

Post Number:#2  Postby Sicko » Tue May 27, 2008 4:30 pm

Both primary & backup can be the same model.

When you carry 2 when diving,

The one that you use when diving is your primary.

The one stowed in your BCD is your backup.
Anyone can do a dive to 100m or more.....
But how many will return alive???
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Re: primary light vs backup light...

Post Number:#3  Postby Mephisto the Heretic » Tue May 27, 2008 5:55 pm

as for me i have the Ikelite PCA and PCM.

the big one i use as primary light for night dive and the second one as back up.

also the small one i carry it during day dive just in case.

so i would recommend the big one as primary for night dives and the small one as back up and for day dive because it is easy to stow.

both have the same output rating but different burn time.
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Re: primary light vs backup light...

Post Number:#4  Postby HoleMaster » Tue May 27, 2008 6:29 pm

My primary is the brightest when using during nite dive. Which is bigger than my secondary light.  :glasses9:
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Re: primary light vs backup light...

Post Number:#5  Postby Nizaha » Tue May 27, 2008 8:09 pm

Hi Everyone.

My Primary use to be 18W Halcyon Canister light.. Suddenly I have HID OMS 10W. Recently I just purchase 21W Salvo HID..

Backup Light: Any 3C cell batteries, I'll recommended .longer burn times, Simple rugged, No switches( just simple twist type).

Safe diving
Zaha
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Re: primary light vs backup light...

Post Number:#6  Postby Snafu » Tue May 27, 2008 9:17 pm

My primary light are the same with my back-up light....same quality.

I prefer it this way so there are no adjustment to be made for my diving.

It might cost more but safety 1st.

:D
Some people are only ALIVE because it's against the law to KILL them...really!!!
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Re: primary light vs backup light...

Post Number:#7  Postby ScubaBunny » Tue May 27, 2008 9:47 pm

Hi ! Me no expert. Ideally I would like to have both primary and secondry same-same lite. But of course cost is always d case so I have bigger lite for primary and smaller lite for 2ndry. Both are UK lites. But few suggestion frm my DI :

1) Try not to get the twist type, he said dat one have d tendancy to leak, twist u/wtr so higher + to get leak when O ring not so gud.
2) Get a bright color, jus in case if your drop em.

I try most of me dive (day) to bring d 2ndry lite (smaller) just incase. If you have money to invest, get a blinker / marker. Look like starwars underwater..  :D
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Re: primary light vs backup light...

Post Number:#8  Postby evo5555 » Wed May 28, 2008 2:05 am

ScubaBunny wrote:Hi ! Me no expert. Ideally I would like to have both primary and secondry same-same lite. But of course cost is always d case so I have bigger lite for primary and smaller lite for 2ndry. Both are UK lites. But few suggestion frm my DI :

1) Try not to get the twist type, he said dat one have d tendancy to leak, twist u/wtr so higher + to get leak when O ring not so gud.
2) Get a bright color, jus in case if your drop em.

I try most of me dive (day) to bring d 2ndry lite (smaller) just incase. If you have money to invest, get a blinker / marker. Look like starwars underwater..  :D


hmmm leaking twist type torch?? sounds familiar?hehehe
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Re: primary light vs backup light...

Post Number:#9  Postby SuperKingKong® » Wed May 28, 2008 4:29 am

recently i tried the UK Q40 plus... i think 2W LED using 4 AA cells.. small and cheap.. and from the performance.. it's almost has the same brightness as the Princeton Tec shockwave led ... a big pistol grip 8C cells light.. which cost almost rm200+ difference.
cheers...
"Dive Like Hell & You'll Be There" (it's so true... i personally have experienced it)
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Re: primary light vs backup light...

Post Number:#10  Postby poisson » Wed May 28, 2008 7:44 am

are you answering your own questions again SKK?  :laughing11:
I liked things better when I didn't understand them..
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Re: primary light vs backup light...

Post Number:#11  Postby SuperKingKong® » Wed May 28, 2008 8:38 am

wah.... no noo... :)

actually i need opinions.. so that i can double-check with my answer and see whether i'm correct or not :P

in this case... i'm just not sure what do u guys classified the primary as....

i'm wondering,... if i bring down the Q40 eled plus.. small $ tiny but very bright and have a burn time of 5 hours... wondering whether it's enough.... :)
cheers...
"Dive Like Hell & You'll Be There" (it's so true... i personally have experienced it)
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Re: primary light vs backup light...

Post Number:#12  Postby w_knight » Wed May 28, 2008 11:10 am

hi .. just use the same analogy if drive a car with a spare tire .. the backup light is for you to use when "just in case" the primary light is broke down .. and some of the reason carry a smaller backup light is because to "squeeze" into your BCD pocket ..

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