I can turn on a strip of led with a 3.7v battery

I can turn on a strip of led with a 3.7v battery

I can turn on a strip of led with a 3.7v battery

Good, works well

Good, works well

Good, works well

Αυτοί οι ρυθμιστές προώθησης λειτουργούν καλά όπως διαφημίζεται. Συνιστώ.

These boost regulators work well as advertised. Reccommend.

Αυτοί οι ρυθμιστές προώθησης λειτουργούν καλά όπως διαφημίζεται. Συνιστώ.

Un producto al que muy pocas personal saben sacarle el jugo. Ideal para alimentar aparatos de 12 v. con baterias de 3.7 V. buen producto a un precio muy asequible.

Un producto al que muy pocas personal saben sacarle el jugo. Ideal para alimentar aparatos de 12 v. con baterias de 3.7 V. buen producto a un precio muy asequible.

Un producto al que muy pocas personal saben sacarle el jugo. Ideal para alimentar aparatos de 12 v. con baterias de 3.7 V. buen producto a un precio muy asequible.

Scheda utile per adeguare un alimentatore di varie tensioni con un oggetto di un altra tensione regolando l'uscita facilmente , contatti a saldare facilitati .

Scheda utile per adeguare un alimentatore di varie tensioni con un oggetto di un altra tensione regolando l'uscita facilmente , contatti a saldare facilitati .

Scheda utile per adeguare un alimentatore di varie tensioni con un oggetto di un altra tensione regolando l'uscita facilmente , contatti a saldare facilitati .

OK

OK

OK

goed product

goed product

goed product

A useful wide range DC / DC converter. Despite my best efforts I could not break it. I was able to modify it easily as a 300mA constant current source for LEDs. Limitation on output voltage is output diode and output capacitor. Both can be changed to get > 50V out.

A useful wide range DC / DC converter. Despite my best efforts I could not break it. I was able to modify it easily as a 300mA constant current source for LEDs. Limitation on output voltage is output diode and output capacitor. Both can be changed to get > 50V out.

A useful wide range DC / DC converter. Despite my best efforts I could not break it. I was able to modify it easily as a 300mA constant current source for LEDs. Limitation on output voltage is output diode and output capacitor. Both can be changed to get > 50V out.

All Ok! works proper!

All Ok! works proper!

All Ok! works proper!

good

good

good