Package includes: 11pcs x gel filter sheets, 11 colors in total, 1pcs for each color. When you feel the light was too bright, you can use a scissors and double-sided tape to apply these gels to the interior of the glass housing. It definitely brought down the brightness and created a softer night light. These colored overlays filters are suitable for film, video, photo, stage, theater, party, and DJ lighting, good for photo studio strobe flash light. They can improve clarity, control eye movements and help with dyslexia reduce frustration in reading. Suitable for equipment board, interior decoration, drinking water tank, liquid level display, decoration, various product packaging, clothing template, binding, teaching color change, filter, printing machine, manual DIY, etc. Perfect for placing over outdoor lights, or transforming regular garage flood lights to Christmas lights, Halloween decorations. Add some color to landscape lights, or tinting your ground lights for the holiday season, such as Christmas, Halloween, Thanks Giving Day.