power adapter high pitched noise

48v 2a Lead Acid Battery Charger 2000ma

48v 2a power supply Description:
 

96W 48V2A BATTERY CHARGER

Universal AC Input (full range)

Dimension: 140*60.5*34.5mm (L'W'H')  

Quick Detail:

○ 7 years production experience in power supply.

○ 3 senior engineers with over 10 years experience in this field

○ Low power consumption, high reliability

○ Protections: Short circuit/Over load/Over voltage

○ 100% full loading burn-in test

○ All products have been checked and packaged in good condition before dispatch
 

Applications:
 
○ Digital and electronic products, industrail equipment.
○ Fiber transceivers, game player, LED, CCTV camera;
○ Communications and security products;
○ LED Strip Lighting/ LED lamp / LED Light, LED / LCD display.
○ Household Electrical Appliance,
○ Mini PC / PDA / Laptop / Notebook products, etc.

 images:

Company infomation :

Shenzhen Juyuanhai Electronic Co.,Ltd. was established in 2009, a professional manufacturer specialized in researching, producing and selling products like Switching power adapter, Car charger etc.So far our products have been exported to Europe, North America, Australia, Africa, Middle East and Southeast Asia. All our products enjoy very high reputation among our customers. Warmly welcome domestic and foreign customers to visit our factory and achieve win-win situation.

Certifications:

FAQ

1, What kind of company we are?

2, How we control the quality?