3W LED MR11 alternative?

[Patriot1970]

At Deal Extreme, this 3w spotlight looks like a very tempting bulb. I just may try one of them, but wasn't sure of some of the specs. My guess is that it uses a 3W Luxeon.

SKU 11931- I wanted to know some specs.

1. How many lumens does it produce?

2. What wattage halogen is it equal to?

3. What degree spread are they?

4. Do you have a picture showing the hot spot from several feet away, instead of so close?

5. Does it require specific +/- leads hookup? Some will be damaged if you hook them up reverse polarity.

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The spread photo look slike it is about 90 degrees, but it kind of appears to have about a 20-30deg hotspot in the center. Just curious what it would look like at several feet away.

Has anyone tried one of these bulbs?

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[hit4six]

An led flashlight should be brighter and you can still use optics if you want a wide spot. And did you read the comment on DX, it isn't mr11 size because it is longer. US $17.87 doesn't seem cheap to me. A purpose designed 6v 10w bike light bulb is 200 lumens+, a 10w Maplins Mr11 at a guess about 140.

 

[Patriot1970]

The problem I'm having is that I have a 12.1v supply, and can't over volt my 12v lights. My 6v/10w light on my other bike is just as if not brighter than the 12v/20w bulbs I'm using on this rig. I'm trying to figure out how to get something brighter that doesn't use too much power.

That's kind of what I'm wondering about. I have some homemade MR11 bodies on my bike. They have plenty of room for these longer bulbs. I don't want to get rid of the light bodies I have.

I was considering using a flashlight 12v CREE R2 drop-in, but the diameter is smaller. I'd have to jury rig something to make it fit.

Not sure hwat to do.

 

[hit4six]

Can't two 6v bulbs run from 12v ?

For a considerable upgrade, the current thread 'dyno powered triple cutter r2' features an mr11 sized kit. If you can build a heatsink maybe you can do this and use your housing, there must be suitable drivers for your battery. If you have 20w available you can go very bright with led.