Sure, we can provide some samples to our customers for testing. Please tell us the specification and the sample quantity of the solar panel you need, and we will prepare an PI for the sample cost for payment. If you have your own courier account, please tell us and we will arrange freight collect shipment. If you don’t have a courier account, we can arrange shipment via our shipping agent, and add the freight cost into the PI. For small amount sample fee, you can pay it via Paypal. And we will make samples accordingly once we get your payment.