@Gargron this one: https://www.v-tac.eu/products/samsung/led-fixtures/20w-led-grill-fitting-samsung-chip-60cm-120-lm-watt-4000k-detail.html
however i did have to modify the driver circuit board because the light was too bright for this use (removed one of two resistors to increase the sense resistance for the driver chip, which makes it dimmer)
@jk Hm, I am skeptical