ITEM NAME:3-32V DC 1-Channel SSR Solid State Relay High-low Trigger 5A 5v 12v For Ard Y3R9 3-32V DC 1-Channel SSR Solid State Relay High-low Trigger 5A 5v 12v For Ard Y3R9 Power supply: 3-32VDC Trigger: high-low trigger 3-32VDC relay switches (ON), 0-0.5V relay off (OFF) Load current: 5-220VDC 5A (DC only) Board Size: 68.5mm x71mm, height: 25mm Positioning hole spacing: 63mm x65.5mm, aperture: 3.1mm Color:black Material:CCL Package Contents: 1 x 1-Channel SSR Solid State Relay High-low Trigger Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..1 x 1-Channel SSR Solid State Relay High-low Trigger. Trigger: high-low trigger 3-32VDC relay switches (ON), 0-0.5V relay off (OFF). Load current: 5-220VDC 5A (DC only). Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.