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  • Overall Rating: 5
  • Price: 5
  • Quality: 4
  • Ease Of Use: 5
  • Usefulness: 5
A kickass emitter! – Cree XR-E Q5 Emitter on Premium Star (228LM at 1A) Reviews

posted by dark1 on 10/30/2007 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

Pros:
Bright and efficient. Good tint, very white. Did I say BRIGHT?? According to my lightmeter readings, at only 700 mA this thing puts out more light than a P4 Cree at 1000mA - with less heat to boot!
Cons:
The emitter had a tiny air bubble underneath the dome. Does not affect the performance, really.
Other:
Note that these typically have higher forward voltage than older Cree XRE LEDs. If you're modding a single cell 18650 or 14500 light with one of these, you might find out that the new emitter is driven at lower current because of its higher Vf! If this is the case, you might want to consider swapping the driver board. sku #4735 works great.
Bottomline:
Best LED available today, for great price.

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