Yes I got them on eBay, you can find many sellers if you search E27 5630 bulb. I think currently 5630 is the brightest mini LED chip for bulb like this. I tested and think 1 bulb would produce med light for a 10 gallon tank. I am gonna change it to something slimmer in profile through cuz I only have 4 inches clearance above each tank.
Each bar is 20" and have more chips than the bulb. I will post an update when I receive them.
Did a big trimming to my main tank and dumped all the extras to the shirmp tanks to help cycling. Also add some temporary light bulbs to keep the plants alive. My friend kept telling me to add disposable fish and shrimps to help cycling, but I feel bad to add them to the water that has 6ppm Ammonia!