Nichia GS 5MM LED 28lm @ 70ma

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Last seen: 2 years 5 months ago
Joined: 01/18/2011 - 20:31
Posts: 896
Location: Bolton, UK
Nichia GS 5MM LED 28lm @ 70ma

I was having a bit of a rant on another non-flashlight forum, because they were saying how good some crappy lantern was.

I went to the Nichia site to check the specs for the GS and noticed they have a new version, the "NSDW570GS-K1".

28lm at 70ma*3.4v=238mw seems really rather impressive, especially for a 5mm LED. I wonder how warm they get, the datasheet isn't very clear.

Now if only I could find somewhere that sold them, in English without a large minimum order...I wouldn't mind the moon on a stick either Silly


Datasheets -

Last seen: 2 years 3 months ago
Joined: 11/22/2010 - 01:00
Posts: 367
Location: Argentina

Very interesting but the only people who have it want a lot of money just for shipping, to most not european countries start at 30 usd beside $ 2.50 each piece.

Last seen: 9 years 1 month ago
Joined: 02/16/2011 - 22:07
Posts: 411
Location: New England

The cooling on 5mm's is non-existent. you'd need 10 gauge wire to do real heat transfer. The light output will likely quickly deteiorate. 

Match's picture
Last seen: 5 years 6 months ago
Joined: 11/14/2010 - 11:57
Posts: 1488
Location: South Carolina, USA

For their size, the Nichia's are impressive.  Although... the above output only calculates out to 117.6 lm/w.  May not be bad if you're using one to upgrade a very small light, but if you're looking for more an xpg or xml can exceed that efficiency at low current.

Another option for cheap Nichia's would be to buy a fusion 36 drop-in off of ebay ($25 free shipping). Just under $0.70each and are a nice neutral white, although I'm not sure the exact bin #.  

Last seen: 7 months 3 weeks ago
Joined: 09/02/2010 - 13:31
Posts: 537
Location: PA, USA

sounds like a good upgrade for the BLF delight

scruffy dog
Last seen: 6 years 4 months ago
Joined: 02/09/2010 - 11:20
Posts: 337
Location: Scotland

Hi Pook

i have a fusion 36 that i have been harvesting the GS leds from

pm me your address and i will post you a few

cheers Barrie

Last seen: 5 months 1 week ago
Joined: 02/09/2010 - 12:34
Posts: 347
Location: Croatia

I bought Nichia GS here:

10 pcs. for 9.90 Euro + 3.90 Euro shipping

Last seen: 3 months 3 weeks ago
Joined: 11/02/2010 - 02:51
Posts: 134

shipping out of the EU is a bit expensive though...

A blog on keychain gadgets, pocket tools and more:

Last seen: 2 years 5 months ago
Joined: 01/18/2011 - 20:31
Posts: 896
Location: Bolton, UK

Thanks Barrie! Laughing