Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
Nice cheap led decorations.
I switched the lights to continuos lighting without blinking and after few hours insulatiou on many leds with resistors melted. So i did same measured leads are powered by 230V from and resistors 1k9 are used to reduce U. In red yellow blue color string is power loss on rezistors p=0,42W on green leds p = 0.47W but used resistor are designed for P=0.25W and without insulation. So when leas are continuosly swithed on rezistors became really hot and insulation is damaged.
I bought 2 string lights and, second piece haven't problem with isulation. Most likely because different resistors were used 1k (instead of 2k) = it means that the power loss on resistor is most likely below 0.25W.
This is really dangerous - xmass decoration. Led's are powered directly by 230V And when the insulation is melted you can get pretty big shock(last shock in your life).
Note:Stock and Availability shown on this site is for your reference only. While
we strive to provide the most accurate and timely stock and availability information,
availability information may become out of date and may change between the time
you added an item to cart and the time your order is received.
Quantities on clearance items are limited. Prices are current at time of posting. DX Reserves the right to change prices at any time without notice.