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LEDs
dedome Luminus_SST-40-W_Datasheet-1499204 SST40 strolux S2
https://www.mouser.com/ProductDetail/Luminus-Devices/SST-40-WDS-F50-N3501
luminus_sst-40-w_datasheet-1499204_superspace.pdf
https://www.aliexpress.com/item/4000589514066.html
https://www.aliexpress.com/item/4000289240037.html
http://www.mtnelectronics.com/index.php?route=product/product&product_id=663
xv2002
ET+7135 driver cree  led xree flahslight ax2002
http://budgetlightforum.com/node/54947