Welcome to the forum.
Let's see if I can offer you some insight into your scooter. A search turned up these images and specifications;
https://s3.graphiq.com/sites/default...150_307244.png
Your scooter looks like a cross between the Peace Sports models 803 and 811. It is mostly a 811 Classic or Milano style, but has other elements.
The specs show it to be a standard GY6 150cc Chinese powered scooter. The regulator linked below is a stock regulator for the GY6 150cc, that racing planet states is yours.
http://www.racingplanetusa.com/image...er_gy6_web.jpg
If my quick research is correct, then to service / repair your scooter, just use the information available here and other places as it relates to a Chinese GY6 150cc.
Bulbs burning out is a sign of overcharging and or bad ground circuits. Overcharging is usually caused by a regulator that is not grounded properly or excessive resistance in the ground circuit. Since you have had a regulator failure, I would suggest that you check all the grounds from the engine and chassis to the battery.