推荐回答(5个)
LED灯带一般在7~20瓦。
具体的瓦数主要看led灯带长度、灯珠型号、灯珠亮度以及每米灯珠数量。
以一米60珠普通亮度的5050灯带为例,一颗5050灯珠瓦数大约是0.18W,那么一米led灯带的总瓦数是0.18*60=10.8W,越高亮度瓦数也会越大,不过就是是最高亮度的led灯带,瓦数也不会很大,与家里的冰箱空调等大型家用电器比,LED灯带属于非常节能的电器。使用LED灯非常符合我国现在施行的节能减排的政策。
节能减排是指节约物质资源和能量资源,减少废弃物和环境有害物(包括三废和噪声等)排放;狭义而言,节能减排是指节约能源和减少环境有害物排放。
看里面有几个发光二极管,一般的发光二极从1W到3W的居多,家里餐厅灯就用了几这样的小灯,7W一个灯,内部是两只发光管。
当然LED灯也有大功率的,但大部分都挺节能省电的,比相同亮度的其他灯具功率要小得多。
灯带里的发光二极管,功率要比照明的小些,大部分都在0.1W以下,数数二极管数就可以知道大概功率,但最好是通过电压,电流来计算,P=UI这样更准确。
不同LED灯带的功率也会不尽相同,需要根据其电流与电压进行计算,从而算出功率。
LED灯带功率计算公式:P=UI
LED灯带功率计算方法:白灯(单颗灯珠举例)
LED工作电压(U):1.8V-3.6V(主要是晶片决定的,颜色不同工作电压也不同)
额定电流(I):一颗灯芯10mA-20mA
即功率(P):3V*20mA=3V*0.02A=0.06W (1A=1000mA)
一颗灯珠是0.18瓦,那么,一米有60珠的话,乘以相对应的一米的颗数,比如买了20米这款60珠的led灯带,那功率P=0.18*60*20=216瓦
这个要看具体灯珠数量,我以5050的单色灯条举个例子一米30颗灯的是7.2W一米60颗灯的是14.4W
不同led灯带是不一样的,需要根据其电流与电压进行计算,从而算出功率的。
功率是能量的传输率的度量,在直流电路中它是电压V和电流A的乘积;在交流系统里则要复杂的多了。不管是高压还是低压led灯带,它们都是将交流转化为直流来进行工作的。
所以,led灯带功率计算可以用:
P=UI
每个厂家由于芯片不一样,会导致led灯珠工作电压和工作电流不一样。所以,市场上同样一米led灯带,它们的功率会不尽相同。
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