This is the TLM-2 spectrometer from Torch Bearer. It has both a PC and mobile application. This device will be available on Amazon soon and we wanted to test it out beforehand (currently only available here in China).

Link to the TaoBao store where I bought this device (note: only available in China):
https://m.tb.cn/h.gjxXjhL2so3DXXN?tkw4cg3XmKL2i

Quantum dot synthesis:
https://www.youtube.com/watch?vNkf-eMdJ6Is

TaoBao Consignment Services:
https://baohero.com/buy-from-taobao
https://letschinese.com/how-to-order-from-taobao/
https://wise.com/en-cn/blog/how-to-buy-from-taobao-guide
https://global.cainiao.com/

Bilibili videos by Lao Kang (the inventor of the first spectrometer we tested)
https://space.bilibili.com/349890769

00:00 Introduction
01:55 Introductions
04:27 Product and features
09:43 Testing LEDs
16:03 Testing a high-pressure sodium lamp
19:13 Laser pointer in test
24:30 Testing a CFL lamp
27:15 End of part 1
30:11 End

Please take the opportunity to connect with your friends and family and share this video with them if you find it useful.