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Опции темы | Поиск в этой теме |
23.11.2010, 02:32
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Увлеченный
Регистрация: 25.06.2010 Последняя активность: 24.06.2015 07:00
Сообщений: 57
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Sigma PowerLED Black - review.
Sigma Powerled Black - the top product of one of the biggest European manufacturers SigmaSport.
Costs : 130$ - lamp + handlebar mount 180$ - lamp, handlebar mount + Li-ion battery pack and charger Claimed runtime (on 140g Li-Ion pack) : High : 3,5h Mid : 5,5h Low : 11 h  Sigma marketing specialists are selling you that… - for the most people it looks like “more than 600 lumens".   But when you buy and try you will know that you have bought something like that…   There is enough glue on thread to make unscrewing the top cap almost impossible without damaging it - as you can see on the photos.       It looks that they use Microchip PIC12F675 - with maximal supply voltage 5.5V, that choice affects efficiency badly… And greed 1,5$ for U-bin SSC. Код:
V-in I-In P-In V-led I-led P-led Eff. 8,29V 0,146 mA 1,2103 W 2,61 V 0,272 mA 0,70992 58,65% 8,18V 0,345 mA 2,8221 W 2,98 V 0,638 mA 1,90124 67,36% 8,08V 0,493 mA 3,9834 W 3,26 V 0,913 mA 2,97638 74,71% |
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