My original 3 star rating below. Now I rate this 1 star and I would give 0 stars if I could. The fan is completely broken. No more spiders. I'm sure the rest of the device will stop working soon. And because they used special screws, you can't even open it to try and fix it. It says 'Made in USA' but I highly doubt it given the quality I noticed the first time I used it and how it basically stopped working properly after a few uses. I do not recommend buying. -------------- Works as described. It is desirable that the input connectors be placed slightly further apart or rotated to facilitate disconnection from the board. The fan is loud. The fan also seems to have been installed cheaply and made loud rattling noises as if it were hitting something inside. To open the block you need a special screwdriver, which I didn't have. He struck a couple of times, it got quieter. You would think that for the price it wouldn't work and sound like something 12 year old assembled in China. Otherwise it works as it should on my 100 watt panel.