DX  » Community » Reviews » UltraFire WF-501B Cree R2-WC 250-Lumen LED Flashlight Black (1*18650/2*CR123A)
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  • Overall Rating: 5
  • Price: 5
  • Quality: 4
  • Ease Of Use: 5
  • Usefulness: 5
Ultrafire R2 SUPERLEDLIGHT – UltraFire WF-501B Cree R2-WC 250-Lumen LED Flashlight Black (1*18650/2*CR123A) Reviews

posted by lasermanathome on 03/24/2009 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

Very bright compared to all other
flashlights, equipped with only one ledemitter, when used with 2 x16340
3.0 or 3.7V much brighter than with one 18650
Suitable for most situations, it can't be compared with xenonbulb Ultrafire-flashlights, the 6000K sunlightcolor
makes situations better judgable than
with the more yellowlike light of glowing bulbs and their shorter autonomy
with comparable lightoutput.
The focus has to be tuned by turning the reflector about 1/4 turn back and sealed with a drop of cyanoacrylate. The quantity of light this flashlight produces is often more than you will need, a PWM moderator, wich comes with longer using time should be advised.
But for this price...
For a few dollars you can buy a pcb by DX wich provides this function.
Maybe you should consider delivering this flashlight with multipowermodes
and a connector /clampto recharge this flashlight with the batteries inside.
The police and other forces would be very interested in such a set, much more easy than the heavy magcharge they are using now.
Best Buy, can easily be moddered to outstanding performance.
Should be in every home /ship etc.for
The shelflife of CR123 batteries is 10++


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