Hardware Comparison
| Feature | Limelight 1 | Limelight 2 | Limelight 2+ | Limelight 3 | Limelight 3G | Limelight 3A |
|---|---|---|---|---|---|---|
| I/O | Ethernet, RS-232 Serial (3.3V), USB-A Host Port | Ethernet, USB-A Host Port | Ethernet, USB-A Host Port | Ethernet, USB-A Host Port, CAN Bus, I2C | Ethernet, USB-C | USB-C |
| Sensor | OV5647 Color Rolling Shutter | OV5647 Color Rolling Shutter | OV5647 Color Rolling Shutter | OV5647 Color Rolling Shutter | OV9281 Mono Global Shutter | OV5647 Color Rolling Shutter |
| Color Pipeline Performance | 90fps @ 320x240 | 90fps @ 320x240 | 90fps @ 320x240 | 90fps @ 640x480 | 120FPS @ 1280x800, 240fps @ 640x480 | 90fps @ 640x480 |
| AprilTag Performance | 6fps @ 1280x960, 2x downscale | 6fps @ 1280x960, 2x downscale | 7fps @ 1280x960, 2x downscale | 20fps @ 1280x960, 2x downscale 50fps @ 640x480, 2x downscale | 20fps @ 1280x960, 2x downscale 50fps @ 640x480, 2x downscale | 20fps @ 1280x960, 2x downscale 50fps @ 640x480, 2x downscale |
| Weight | - | .17 lb | .17 lb | .17 lb | .24 lb | .20 lb |
| FOV | - | H:62.5° V:48.9° | H:62.5° V:48.9° | H:62.5° V:48.9° | H:82° V:56.2° | H:54.5° V:42° |
| Input Voltage | 4.1V-16V | 4.1V-16V | 4.1V-16V | 4.1V-16V | 4.1V-16V | 4.1V-5.75V |
| Max Power Consumption | 10W | 13W | 7W | 7W | 4W | 4W |
| Illumination | 400 lumens | 450 lumens | 500 lumens | 600 lumens | None | None |
| Brownout Voltage | 4.1V (7V LEDs) | 4.1V (7V LEDs) | 4.1V (7V LEDs) | 4.1V (7V LEDs) | 4.1V | 4.1V |
| Physical Footprint | 3.764in x 3.764in | 95.67mm x 95.67mm | 3.853in x 2.230in | 97.87mm x 56.64mm | 3.853in x 2.230in | 97.87mm x 56.64mm | 3.174in x 1.930in | 80.61mm x 49.01mm | 3.154in x 1.894in | 80.11mm x 48.11mm | 2.839in x 1.894in | 72.11mm x 48.11mm |
| Maximum Thickness | 0.878in | 22.30mm | 1.000in | 25.40mm | 1.000in | 25.40mm | 1.160in | 29.46mm | 1.160in | 29.46mm | 0.661in | 16.80 mm |
| Mounting | 4x #10 THRU | 4x #10 THRU | 4x #10 THRU | 4x #10 THRU | 4x #10 THRU, M3 | 4x #10 THRU, 4x M3, 6x M4 |
| Upgrades from previous version | - | Smaller, ESD Protection, Tougher Enclosure | 15% faster, constant brightness LEDs across entire temperature range, red button, 40% reduction in power consumption | Hardware EEPROM for camera calibration, 35% faster, 30% smaller, Gigabit Ethernet, 5gbps USB 3.0, Zero Ethernet Drops | Black Anodized CNC Aluminum Enclosure, Fanless, Monochrome Global Shutter, USB-C functionality | FTC Compatibility |