What do you think for this?

[cdrov]

Hi there i found this

8W 8-24V AC/DC 700lm LED MR16 Warm

http://www.besthongkong.com/product_info.php?cPath=9_69&products_id=663

Anyone has any experience with the specific item or the company?

I intend to replace my 50W halogen lamp which i use for shooting Video. Any suggestions would be appreciated.:candle:

 

[clg0159]

I don't know how important this is to you, but I would not count on getting 700lm from the fixture considering the specifations show a range of 245-699 lumens. It is very common to see an inflated figure like this!

 

[Ken_McE]

What Do You Think Of This?

Critical information is missing from the PDF. If they were proud of the information I would expect them to put it out for all the world to see. I have to wonder what its actual output is.

 

[VanIsleDSM]

Using 3 P4 flux warm white CREE LEDs @ 700mA each I'll be using 7.35watts and making ~480 lumen..

That's with top quality LEDs.. so I'll add to the BS vote here about 700lm @ 8 watt in a warm white.

 

[LEDninja]

They did not say Cree or SSC or Rebel so I'll assume 1 watt Luxeons. 1 watt luxeons give ~30 lumens cool white and ~20 lumens warm white about 160 lumens total.

Of more concern is the light spectrum. Warm white LEDs have green & yellow and is missing violet blue cyan orange red.

Your halogen has green yellow orange red. And your video camera probably has an indoor setting for it.

 

[IMSabbel]

Those specs look a little strange.

700 lumen max, with 6.5W power input, AND 2300K colour temperature?

Something doesnt add up there at all.

To me it looks like another kind of fake i have seen before:

They use "maximum" lumens by quoting the manufacturer maximum (i.e. at highest drive current), neglecting to state that they drive them much lower.

So 700lumen could very well be the output of all those leds at 1A, but in reality they drive them at 350mA, yielding 300 or so.

 

[cdrov]

Thanks guys. I really liked VanIsleDSM's alternative with warm crees...thanks again

 

[VanIsleDSM]

Thanks.. I'm actually building MR16 lights with exactly what I spoke of.. you can see pictures of the 3xCREE 480lm vs a 50watt halogen MR16 here:

http://www.candlepowerforums.com/vb/showthread.php?t=183477

There's nothing on the market that I've ever seen that satisfies me.. None of the MR16 bulbs are built for performance it seems.. all for profit.. None of them have adequate heatsinking.. and including an LED driver inside each MR16 is inefficient, more expensive, adds more heat and takes away more area that can be used for heatsinking.

I'm currently building the heatsinks on my lathe and I already have the drivers... just waiting on some tiny little machine screws I ordered right now.