Help Torubleshooting Ultrafire wf-502b

sionnach

Newly Enlightened
Joined
Feb 20, 2012
Messages
25
Hi -
I need some help/advice troubleshooting a recent purchase.

I picked up three UltraFire wf-502b lights from DX.

DX SKU: 5523

One of the lights works, two of them do not.
I am unfamiliar with troubleshooting flashlights and would like to know what you guys recommend for procedure.

I have swapped out the tail switch and battery between them and tested which ones work with what.
I have not yet swapped heads to check those.

Can you tell me what steps I should take? and what repairs to execute depending on what the issue is?

Thanks!
--
Todd

Do not link directly to sales sites - Norm
 
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