Szemhazai
Enlightened
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… :candle:
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.
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… :candle:
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.
Code:
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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