The 1210 panel lights are about 1/3 the light output per LED compared to the 5050 panels, that are 5mm X 5mm.
I bought 10 of the 24 LED 5050 panels for about $1.70 each at
AliExpress.com including free shipping.
You can go to that website, search for 5050 LED panel, then click on "Free Shipping" and click on "List lowest to highest price".
The lowest cost places will show up first with offers to ship for free 100 lot probably around $1.50 each. Go a little further down the page or to the next page, start looking for lots of 10 or 5.
You can also click on a item, then look on the top of the page "Ad to favorites" and also look on the left side of the page, click on "View my store". You will be able to find several dozen vendors that sell the 5050 LED panels on the first search, and then you can see what else they sell.
I ended up buying a 3 LED 5050 light to replace my running light bulbs, cost about $4.50 for 10. This will reduce my running amperage through the headlight switch, and keep it from overheating, and also provide better light to all the running lights.
Things are really low cost through Aliexpress.com
I also found a bright 1 watt LED flashlight, with a pair of 18650 batteries in it. Really bright, and will run for about 10 hours before I need to recharge it.
Fred.