I have a tp-link wifi bulb. Model number is gard to read. Could be LB100 or A10 or A15.

However, the bulb does not appear in my list of network devices. I got a tio to reset it by setching the power of and on 3 or 5 times. I tried this but the bulb still does not appear. 
A second question: How do I change my email in my Kasa-account. My former email provider ni longer exists...

My new email is gope1949@gmail.com