I have predator ice on my X5 right now and yes I did try to use it as DRL but it was way too dim to be used as such. During the day you can barely see the lighted rings standing right in front of it.

Try the angelibright as I think they're considerably brighter than predator ice.

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Dinan S1 pkg / 22" Iforged Swift - Toyo 295F*315R / Eisenmann Race - OEM tips / H & R 15mm front
30mm rear spacers / Euro-spec headlights / CF M Competition steering wheel / Full CF interior /
6000K D2S / HID fogs / AiBrights V3 / Interior Xenon / LED sidemarkers / Matte black grille & hood vents