Creative, cheap and small

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trooplewis's picture
Last seen: 2 years 4 months ago
Joined: 03/26/2011 - 15:35
Posts: 2613
Location: San Diego
Creative, cheap and small

Rats, finally sold my 2010 509hp I can buy more lights!

Sold the red one too! Now guess what I drive, doing my penance for 500 hp commuters...

SashiX's picture
Last seen: 7 years 9 months ago
Joined: 10/07/2010 - 15:46
Posts: 2045
Location: Spain

Yep, nice idea. Pity I don't have 9 volts batts. 

Last seen: 3 weeks 6 days ago
Joined: 02/11/2011 - 16:25
Posts: 384
Location: Belgium

9V batteries are very expensive, and the capacity is very low. A "9V" (= 7,2V) GP Recyko is only 150mAh, the Recyko AAA is 850mAH, the 9V (7,2) is 1,08Wh, the 850mAh AAA is 1,02Wh. There are many AAA lights that are brighter than 6 nichia leds, a AAA flashlight is smaller than that 9V light.

Rechargeable 9V Nimh-batteries are only 7,2V it is possible that the voltage is too low for the leds in series...