Whether the lamp is on or off depends on how much current you give to the lamp under the same voltage.The higher the current, the higher the brightness, Of course, the premise is within the above-mentioned tolerance(3-3.3v, 1500-3000ma). So don’t be slanderous without any data to prove it. Scientific point~~~![](https://img.alicdn.com/imgextra/i3/2912466111/TB2Z3BKeASWBuNjSszdXXbeSpXa_!!2912466111.jpg)