Founded in 1996, Hong Kong longwei Instrument Co., Ltd. is a research and development, production and sales in one of the science and technology enterprise.The professional production oscilloscope, DC power supply, power inverter, LCR digital bridge, etc.
4.9
out of 5
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- estou muito satisfeita delania134,2019-03-22 13:06:08
- Chegou bem embalado, antes do prazo, a dificuldade foi com os correios Brasileiro. Produto com caixa manual apenas, acredito que venha sem acessório. Recomendo, Satisfeito! Banggooder,2019-06-26 11:14:26
- Good product . Thanks. Ovelixias,2019-05-28 04:42:21
- Alimentatore stabilizzato regolabile da 0 a 30 V, e con un erogazione massima di corrente di 10A. Dimensioni piccole e molto compatte ma con prestazioni da alimentatore Pro. Misurando con il tester la misura è super precisa. Ottimo stefano66,2019-05-30 07:08:04
- perfect. Bu fiyata bu kalite ancak banggood da olur.Cihaz küçük ve hafif.Ve bir O kadar da yüksek performanslı.30 volt 10 Amper,çok başarılı bir cihaz. transformator yok,Smps bir cihaz . ahmetYavuz,2019-04-30 15:50:15
- Very nice variable power supply😊 really help me in my lab, Ammeter show the current consumption as the load varies! Thank you seller and Bangood as well EmmaTom,2019-10-03 08:10:03
- L'alimentatore funziona perfettamente. Viene venduto completo di cavo di alimentazione. La ventola entra in funzione solo quando serve. thorndykeRC,2019-11-17 17:47:48
- demorou mais chegou... produto funcionando agora só começa os trabalhos deilsonac,2019-10-30 13:58:43
- The power supply looks nice and small, but it does not have the specified specification of the output voltage ripple. When the output voltage is 5V, the ripple is free of 240mV. With a load of 1A at the same output voltage of 5V, the ripple is already 2V! And the same output voltage and at a load of 2.5A the ripple is 2.96V !! Measured by my Rigol DS1102E calibrated oscilloscope. The recommendation not to charge this battery with a large current and to replace the capacitors on the output filter section inside the power supply and to add some high-quality tantalum. AshiChu,2019-05-16 04:08:01
- Ottimo prodotto KratosBosss Chanel,2019-03-25 07:50:54
