I was thinking of organizing such online store, but so far my calculations show it is not that feasible:
Say you order a Convoy for $20 and another one for $50 from China. If both declared under $20, will be shipped free to my door. If declared with real values, first one also will be shipped free, so total cost $20, second one will cost $50+$10VAT+$8 customs declaration= total $68 and few hours in customs office.
If I open business, I will have to pay $45 (dealer price)$$$transport+5% duty+20%VAT+warranty+inventrory financing administrative for the company (office/accounting, etc.) +store/transaction cost+transport within EU - I guess with no profit the price should go up by minimum 40% from promotional prices of Gerabest and Banggood, i.e. 80-100$.
Everything sold in EU should be offered with 2 year warranty (the flashlights), so some percentage should be dedicated to warranty repairs - it is not feasible to return to China for repair. Here we can add reuirements for packaging disposal, preparation of necessary documents if you have check from consumer protection office or metrology office, etc.
There is VAT law in EU, saying, that if you sell from Bulgaria to Germany, you should register your company with German VAT number and charge German consumer with German VAT and pay it to Germany. This adds enormous cost for administration. The turnaround is to find a German company, who sells to German consumer, but they have to cover their cost, i.e. less administrative cost, but more margin into the price - so cost is still there.
In order to have a good proposal, you have to have quite a good inventory, but flashlights and parts a re not fast moving consumer goods - average inventory should be 3-4 months. If you add up one month of travel from China, you end up with 5-6 months inventory, which is again cost, that has to be put into the calculation (or business will disapear in few months).
On top of these costs is maintaing online store and inventory program, hiring warehouse, etc. - again normal cost if you want to run a business. You can skip the store and go through Amazon/Ebay, but there the cost would be ~ 30% combined listing and payment (Amazon pay or Paypal).
Another topic is the transportation in EU - the smallest part can be sent in postal envelope - this costs 6 EUR from my country to most EU countries. I guess flashlight with size of Convoy C8 would be ~ 10EUR.
If you add all these (necessary) costs to the $20 flashlight, you will reach not so nice amount and I doubt someone will buy it on this price.
If I am wrong somewhere in the calculations, please correct me, I will be more than happy to start this type of business.