These are actually for 2.5”, 4” and 6” can as the sticker on the product clearly states. Works great for 4”, and 6” but did not work for my 3”.
Claoner Outdoor Solar Motion Lights - 8 Pack Security Lights With Motion Sensor, All Night Brightness Control, And Wide Angle Waterproof Wall Lights For Enhanced Visibility
49 Review
6 Pack Solar Garden Lights Outdoor Decorative 15 Lumen Metal Pathway Waterproof Warm White Landscape Lighting For Lawn Yard Patio Walkway Decor - LeiDrail
44 Review
Upgrade Your Lighting Game With Amico'S 12 Pack 6 Inch Smart LED Recessed Ceiling Lights - RGBCW, WiFi Controlled And Voice-Activated With Alexa & Google Assistant!
57 Review
LEONLITE 12-Pack 3W LED Landscape Pathway Light, 12V AC/DC Low Voltage CRI90+ IP65 Waterproof Non-Dimmable ETL Listed Bronze Aluminum 3000K Warm White
54 Review
💡 Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
💡 High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
Wireless Electronic Ballast Interface Certified
8 Review