Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
The compact design and portability of this overhead is excellent. I move it around every week and I love how quickly and easily it folds up. What you sacrifice is brightness. I wish the bulb were stronger.
Have used this product for years. Carried across the US by plane. Easy to carry, not too heavy. Take care with the bulb, which can be removed fairly easily. Runs on household current. Case has sufficient size to carry some markers/pens, etc. Not as small as some but a quality product.
Purchased the 3M 2000AG overhead projector and was pleased with its performance and ease of use until the fourth time I used it. The plastic Focus Mechanism Assembly component deformed and crumbled into pieces despite that I limited use to short intervals to avoid extreme heating. Being a teacher and avid user of various display technologies, I know the significance of being cautious with projectors. So unhappy!!!
WHEN I NOTIFIED MR. SHIRAZ BADRDIN, OWNER OF "ONIEL'S", THAT THE OVERHEAD PROJECTOR WAS SHIPPED BROKEN, SINCE I DID NOT FIND ANY BROKEN PART IN THE VERY TIGHTLY PACKED BOX, HE HAD A QUICK READY MADE ANSWER FOR ME:"CALL THE SHIPPER, THEY ARE INSURED". I TOLD HIM THAT IF I WILL CALL THEM I WILL THEM, THAT I THINK THAT IT WAS SHIPPED BROKEN,AND THEY SHOULD TNVESTIGATE THE PAST CLAIMS OF "ONIELS AND MR. SHIRAZ BADARDIN, I WAS TOLD TO SHIP THE PROJECTOR BACK, AND WAS PROMISED,TO BE FULLY CREDITED,ICLUSIVE MY SHIPMENT COST.THE RECIEPT OF $25.WAS INCLUDED IN THE PACAGE. TO-DATE I DID NOT RECIEVE CREDIT FOR ANY.IF THIS IS A METHOD OF GETTING RID OF DAMAGED GOODS,AND/OR GETTING SHIPPERS INSURANCE MONEY, IT SHOULD BE STOPPED!