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.
5.00
out of 5
Base sur 1881 commentaires
Ce que disent nos clients
- Looks good. I verified voltage with professional multimeter - voltage is accurate. Tested current on low values (up to 2A) - accuracy is 01A. Overall satisfaction is high. ssalex,28/09/2017
- Malý šikovný snadno přenosný,zkoušel jsem rozsvítit H3 (do auta) odebírala 5,3 A vše v pořádku nabíjel jsem malou baterii do motorky 12V 7A vše v pořádku,zdroj se po zapnutí,na chvilinku se rozběhne větráček,pak se hned vypne,zdá se mi že je to jen test funkčnosti větráčku.Zkratováním kontaktú si můžete nastavit limitaci proudu.Vše zatím funguje jak má.Děkuji Banggoog za dobrý obchod a bleskové dodání,se zaplacením malé pojistné čásky 14 dnů do České republiky. ladyk,06/12/2018
- estou muito satisfeita delania134,22/03/2019
- appareil reçu plus vite que prévu, très bien emballé, tien parfaitement les caractéristiques annoncées, je recommande ce produit pipiou,14/05/2018
- 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,16/05/2019
- 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,30/04/2019
- 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! BG441545735,26/06/2019
- Delivery in 10 business days to Mexico The item has a good appearance but comes without the banana_plug/cables. miguels188,11/04/2017
- 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 stefano66,30/05/2019
- Regulates voltage well across wide load range. This power supply will save me a lot of time scrounging around for the right power supply for the many projects I build. As a temporary project, I used it to make a bug zapper with an IR LED and electric fly swatter. The PS holds the required 3.0 Volts perfectly. See photo. MarkP,11/07/2017
