ITEM NAME:New Heat Sink for Solid State Relay SSR Up To 40A E4P7 New Heat Sink for Solid State Relay SSR Up To 40A E4P7 Heat Sink for Solid State Relay Size:125 x 70 x 50mm(L x W x H) Solid state relay is not included. Material: Aluminum Colour:White Style:40A Quantity: 1 Pcs Package Contents: 1 x Relay Heat Sink 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..Heat Sink for Solid State Relay. Solid state relay is not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.