What size holes should I drill for my Deck Lights? Matt W 05 October 2020 23:38 Updated Follow For drilling Deck Light holes, we recommend using spade bits with the following sizes: Warm White 18mm Deck Lights [DLWW18K]: 14mm hole Warm White 30mm Deck Lights [DLW3006]: 22mm hole Warm White 45mm Deck Lights [DLW4510]: 32mm hole RGB Colour 30mm Deck Lights [DLRGB3003]: 22mm hole RGB Colour 45mm Deck Lights [DLRGB4505]: 32mm hole Related articles How do I connect multiple packs of Deck Lights? How many Deck Lights can I connect (daisy-chain) in one line? How do I connect my Garden Light Controller to Holman Home? How do I install my Garden Lights? How do I share my Garden Light Controller to other users in Holman Home? Comments 0 comments Please sign in to leave a comment.