2 Pack 30W LED Chip EcoSuma Natural White 4000 Kelvin High Power LED Chips Perfectly Suitable for White Skin (30)

I ordered 2 of these. I use them in a indoor gardening room for seed starting and such. I use 50w leds of several different brands. All of my leds are mounted on a water cooling block with thermal adhesive. Short story is none of my lights get hot so that can't be why they failed. Both of them failed within 1 week of each other. I can't return them because the thermal adhesive makes it impossible to remove the led without damaging it. I will not buy this brand again. Chinese Crap!

As promised, very bright light.

Great purchase, worked as intended

I wonder what these chips are designed for? They have a very specific shape and contacts arrangements. The description talks about the skin types etc. is this for tanning beds? Of course you can fabricate any application for it but I'm sure there was a specific design intent. This being said, these chips are very bright with nice color temperature: not too yellow and not too blue. Definitely need a heat sink. You'll have to make up your own contacts as these chips don't have contact terminals - only small spots on the ceramic plate. I like them, just need to figure out what to use them for.

nice chips! these are a little larger than the led chips i am used to working with, but the increased light output is well worth it. nice and bright, easy to work with for simple led projects. low profile allows to be installed in even the tightest locatiions. i use these for outdoor lighting during hunting and camping trips of of a car battery so i donthave to listen to a generator run after dark. overll i feel this is a decent prdouct. hoping for many years of use. i received this product at a discounted rate in exchange for an honest review.

I purchased these LED chips to replace the 50 W chips in a set of lights that I have that were starting to burn out. I could not install these because after opening the lights that I have the driver in them is 36 V 3000mah current and these chips are rated for 30 to 34 V 1750mah current.Maybe the lights I have are 100 what each I'm not sure.However these do look like high quality chips and come 2 in a pack. If you install these be sure you buy thermal paste to put between the light and the housing to make them last.If I buy a different driver and install these chips I will be sure to update this review.* I received this product at a discounted rate in exchange for my unbiased review and my review is 100% my own honest opinion* Please feel free to ask questions

EXTREMELY BRIGHT! When you get your delivery, don't worry, yes there are 2 in the little plastic case. They are back to back. Extremely well packed. Hooked it up to 30v to test and was nearly blinded! Takes about .5a at 30v to drive. Very nice natural white. No where near cool white. Overall GREAT value! Please note that I received these at a discount in exchange for an honest and unbiased review. Opinions are entirely my own. I hope this review is helpful for you!

Please note that I received these at a discount in exchange for an honest and unbiased review.These are super bright! I am experimenting with them fueling an indoor tomato plant, however i didn't estimate how hot they would get and haven't purchased a heat sink to go with them, it is definitely needed. They shipped fast and arrived in a snug plastic package to prevent any damage. I will update this review once i am able to set them up with proper heat sinks.