1W 80-90LM 6000K White LED Light Bulbs (3.2-3.4V/10-Piece Pack)

Pros: For the price, these are excellent project LED's in the 1 watt territory. At the solder points, very tiny (+) and (-) marks stamped for polarity identification. Bottom is metal for thermal compound application for heat sinks. LED's are very bright!

Cons: None that I can think of, I bought these with full knowledge of their capabilities.

Other: Best price for 90 lumen 1 watt LED emitters that are pure (neutral)white.
What you see in this product listing, is what you get

Pros: I bought these to see how well they would work for making a lamp for residential solar powered lighting use and they look quite promising. I strung 8 of them to check them out and though I was under-driving them the light output was quite good (I don't have equipment to measure the light output). - Though these are the white ones they don't have the annoying (to me!) blue tinge so I was apprehensive before buying them but another reviewer has thankfully mentioned this point. - Since they are 1W 70 Lumen diodes you can string as many as you need depending on the room size and the amount of lighting you need.

Cons: - I wish they were a bit cheaper (who wouldn't!) - Though I was under-driving them (about 200 mA through each while they are rated at 350 mA) they got quite warm pretty quickly) so I think they need quite of bit of heat sinking.

Other: Good component LEDs to build larger custom lamps.

Pros: Perfect. A lot of light. Work at 320ma at 3,2v.They have a good 5500K, maybe a bit up or down, but perfect to work with photo Flashes. They can be regulated with PWM signals. If you buy an intensity regulator here, you have a lot of light in a tiny space for a low price!

Cons: Take care about hot. They need a good dissipator.

Other: No cons.