50 cm long LED lamp band for temporary lighting, please use AC transformer or DC transformer
Now on the market sales of LED lights, there are the following categories: 1, 12V DC power supply use; 2, 24V DC power supply; 3, 220V AC power supply. When you use these products, please see to it whether they are suitable for matching.
Method to distinguish above products: 1, to distinguish between 220V and 12V or 24V AC power supply DC power supply, 220V products are generally comes with insert city power plug, appearance is the use of transparent protective colloid will protect the lamp, lamp with two bare metal wire section, use the built-in plug with the use of the product is high 220V lamp with; 2, 12V or 24V have direct access to LED, this is for indoor use, also has the waterproof, general products, will bring two wires are needed to connect the adapter (DC transformer), the use of the product is belongs to the low voltage DC lamp with 3, 12V and 24V to distinguish; first, the electric test using 12V, if the lamp does not light or with micro light, so, this product is the use of 24V DC power supply can be.
If you need to connect the transformer, then certainly need DC, to distinguish positive and negative poles.
