USB-LED portable energy saving lamp

I bought 10 small USB-LED portable energy saving lamp at the month.
Price: 0.33 USD
Place of production: made in China
Voltage: Computer's USB jack
Size: 16cm*1.7cm
Weight: 16g
The statement of the manufacturer:
Can use in all the USB interfaces.
Bendable.
Power saving, low power consumption.

Use experience:
It can be bent, but it is easy to bounce back after bending, so it need be fixed with tape and
The illumination is weak, the illumination within 15 cm is high, and the light after >15 cm is weak.
If you want to use him as a light when you are using a computer, it is not feasible.
He is suitable for writing, to strengthen the light,
For example, you already have an indoor light and write in front of the computer. At this time, you still feel that there is not enough light, you can use it to strengthen the light.

Overall rating: 4 stars/10 stars
Evaluation (durability): 9 stars / 10 stars
Evaluation (price ratio): 8 stars / 10 stars
Evaluation (efficiency): 3 stars / 10 stars

![](https://cdn.steemitimages.com/DQmTXHvxLW7aDd5HpMaqyi1SafiWG2qyTSM8mMd5SC69o13/image.png)

![](https://cdn.steemitimages.com/DQmc9o5D8SVDtmdJjcpMvHyaS9kEbXYWiszf2xhQh4rsZEY/image.png)

我本月买了10个小型USB-LED便携式节能灯。
价格：0.33美元
生产地点：中国制造
电压：电脑之USD插孔
尺寸：16cm * 1.7cm
重量：16克
制造商的声明：
试用所有的美元之接口。
可弯曲。
省电，低功耗。

使用经验：
可弯曲，但要用胶带固定，在弯曲之后很容易弹回去。
照明光微弱，15公分之内的照明较高，>15公分之后的光线即为微弱。
如果你在使用电脑的时候，想使用他当照明灯，是不可行的。
他适用于写字的时候，加强光线，
比如，已经有开室内灯，在电脑的前面写字，这时候你仍觉得光线不足，可使用他来加强光线。

总体评价：4星/ 10星
评价（耐久性）：9颗星/ 10颗星
评价（价格比）：8星/ 10星
评价（效率）：3星/ 10星