--- product_id: 446503805 title: "BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1" brand: "bluestars" price: "KD 7.89" currency: KWD in_stock: true reviews_count: 13 category: "Blue Stars" url: https://www.desertcart.com.kw/products/446503805-bluestars-708-850-uf-mfd-50-60-hz-110-125 store_origin: KW region: Kuwait --- # 850 µF high capacitance Universal fit for AC motors Lifetime defect protection BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 **Brand:** bluestars **Price:** KD 7.89 **Availability:** ✅ In Stock ## Summary > ⚡ Boost your AC’s startup game—because every cool moment counts! ## Quick Answers - **What is this?** BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 by bluestars - **How much does it cost?** KD 7.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/446503805-bluestars-708-850-uf-mfd-50-60-hz-110-125) ## Best For - bluestars enthusiasts ## Why This Product - Trusted bluestars brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Premium, PCB-free materials for durable, safe operation - • **Risk-Free Upgrade:** Backed by 100% lifetime protection for peace of mind - • **Stress-Free Start:** Reduces compressor strain, extending AC lifespan - • **Power Up with Precision:** 850 µF capacitance ensures optimal motor start performance - • **Plug & Play Compatibility:** Universal fit for most air conditioners and electric motors ## Overview The BlueStars 708-850 µF round start capacitor is a high-quality, universal replacement part designed to reduce compressor strain and improve air conditioner startup efficiency. Operating at 110-125 VAC and 50/60 Hz, it fits most single-phase motors and comes with lifetime defect protection, ensuring durability and reliable performance. ## Description Product description Perfect fit Premium quality This product adopts a high-quality metalized polypropylene film that provides stable and durable performance Saving solution Enjoy the great feeling when your engine is repaired and works properly like before - BlueStars brings DIY solutions to help you deal with any trouble Simple installation Because the capacitor is a relatively simple part, the installation just takes a few minutes and will save you at least a hundred bucks in labor What does "708-850 uF" mean? "708-850 µF" in a motor run capacitor spec means it has a capacitance range of 708 to 850 microfarads (µF), determining its ability to store electrical energy. This range should match the motor's requirements for optimal operation. What does "708-850 uF" mean? "708-850 µF" in a motor run capacitor spec means it has a capacitance range of 708 to 850 microfarads (µF), determining its ability to store electrical energy. This range should match the motor's requirements for optimal operation. Can I replace a Motor Start Capacitor with a Motor Run Capacitor? Start capacitors give a large capacitance value necessary for a motor to start for a very short period of time (usually seconds long). A start capacitor can never be used as a run capacitor because it cannot handle current continuously. Can I replace a Motor Start Capacitor with a Motor Run Capacitor? Start capacitors give a large capacitance value necessary for a motor to start for a very short period of time (usually seconds long). A start capacitor can never be used as a run capacitor because it cannot handle current continuously. I've installed the Capacitor, but my machine is still not functioning properly. What's the issue? There might be several reasons for this such as: Incorrect installation, faulty motor, capacitor compatibility or other electrical issues. If the issue persists, please don't hesitate to reach out. We're here to help. I've installed the Capacitor, but my machine is still not functioning properly. What's the issue? There might be several reasons for this such as: Incorrect installation, faulty motor, capacitor compatibility or other electrical issues. If the issue persists, please don't hesitate to reach out. We're here to help. Can a motor start capacitor rated 110-125 volts be hooked up to a 220 volt line input? Will it just burn out? Can I repair the faulty Capacitor? Capacitors are typically not designed for repair and are considered disposable components. We recommend you to replace by a new one. Can I repair the faulty Capacitor? Capacitors are typically not designed for repair and are considered disposable components. We recommend you to replace by a new one. Let's Compare and Choose the Best one! 708-850 uf 110-125 VAC 189-227 uf 220-250 VAC 50 uf 370/440 V 45+5 uf 370/440 VAC 7.5 uf 370/440 VAC 120uf 250V Review: Perfect Run Capicator for Pool pump - Worked great on my Super Hayward 1 HP pool pump. The original run capacitor is rated 50-400 uf. I read up a little and understood that original run capicator when burns out, makes a humming sound but impeller freely rotates when manually spun around. It may help others to know that you are good to go up a notch on microfarad but not down. I ordered the Upgraded Version 340-408 uf 110-125VAC BlueStar capicator. It was easy to install (I took one wire off at a time from old capacitor to make sure all three are similarly placed). BlueStar capacitor was perfectly sized. It seemed to have a better physical construct quality than the original. Btw I am not a super handy kind of guy but this was easy. Run capacitor is only two outside screws and one inside screw away on an Hayward super pump 1HP (gold). This cost me a little research and 13 bucks, replacement took me 10 minutes max —- saving me hundreds in service/ replacement costs! Few days in, it is going strong. Easy, fast reliable start. Would definitely recommend!! Review: Pool pump capacitor - Needed this for a Hayward pool pump. Works great!!! ## Features - 100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise. - PART NUMBER: 708-850 uf/ MFD 110-125V VAC Round Start Capacitor. - FUNCTION: This part protects vital components of your air conditioner by significantly reducing the amount of time. It helps your air conditioner and compressor bear ½ the stress, strain and heat each and every time it starts. Before you replace your air conditioner, try adding a start capacitor. The 708-850uf Start Capacitor might save you from wasting thousands of dollars to buy a new air conditioner or compressor. It’s a wise investment to install a Start Capacitor. - EASY TO INSTALL: These Start Capacitors are designed specifically for the replacement of OEM single-phase motor capacitors. They are compatible with most Air Conditioners’ brands. All units are PCB-free. - PREMIUM QUALITY: The replacement part is made from durable high quality material and well-tested by the manufacturer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09TKWJRVH | | Best Sellers Rank | #1,684 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Industrial Electrical Capacitors | | Brand | BlueStars | | Brand Name | BlueStars | | Capacitance | 850 Microfarad | | Customer Reviews | 4.6 out of 5 stars 1,144 Reviews | | Included Components | capacitor | | Item Shape | Round | | Manufacturer | BlueStars | | Material | 708-850 MFD | | Material Type | 708-850 MFD | | Maximum Voltage | 125 Volts | | Model | 708-850 uf/MFD 110-125 VAC | | Mounting Type | Rack Mount | | Operating Voltage | 125 Volts | | Part Number | 708-850 uf/MFD 110-125 VAC | | Shape | Round | | Unit Count | 1.0 Count | ## Product Details - **Capacitance:** 850 Microfarad - **Brand:** BlueStars - **Material:** 708-850 MFD - **Shape:** Round - **Operating Voltage:** 125 Volts ## Images ![BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 - Image 1](https://m.media-amazon.com/images/I/71k5iRIADvL.jpg) ![BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 - Image 2](https://m.media-amazon.com/images/I/71qOl1r56XL.jpg) ![BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 - Image 3](https://m.media-amazon.com/images/I/71PMsZwj9bL.jpg) ![BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 - Image 4](https://m.media-amazon.com/images/I/71gMeegA+NL.jpg) ![BlueStars 708-850 uf MFD 50/60 Hz 110-125 VAC Volts Round Start Capacitor by Blue Stars - Universal Fit for Air Conditioner and Other Electric Motor Applications - Pack of 1 - Image 5](https://m.media-amazon.com/images/I/81RtEN4NnwL.jpg) ## Available Options This product comes in different **Material Type, Style** options. ## Questions & Answers **Q: What does "708-850 uF" mean?** A: "708-850 µF" in a motor run capacitor spec means it has a capacitance range of 708 to 850 microfarads (µF), determining its ability to store electrical energy. This range should match the motor's requirements for optimal operation. **Q: Can I replace a Motor Start Capacitor with a Motor Run Capacitor?** A: Start capacitors give a large capacitance value necessary for a motor to start for a very short period of time (usually seconds long). A start capacitor can never be used as a run capacitor because it cannot handle current continuously. **Q: I've installed the Capacitor, but my machine is still not functioning properly. What's the issue?** A: There might be several reasons for this such as: Incorrect installation, faulty motor, capacitor compatibility or other electrical issues. If the issue persists, please don't hesitate to reach out. We're here to help. **Q: Can a motor start capacitor rated 110-125 volts be hooked up to a 220 volt line input? Will it just burn out?** A: No. The voltage rating of a capacitor indicates the maximum voltage that it can handle safely. If you put a 110-120 capacitor where a 220V is required, it may start the motor a couple of times but will fail very soon. **Q: Can I repair the faulty Capacitor?** A: Capacitors are typically not designed for repair and are considered disposable components. We recommend you to replace by a new one. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect Run Capicator for Pool pump *by J***K on August 2, 2025* Worked great on my Super Hayward 1 HP pool pump. The original run capacitor is rated 50-400 uf. I read up a little and understood that original run capicator when burns out, makes a humming sound but impeller freely rotates when manually spun around. It may help others to know that you are good to go up a notch on microfarad but not down. I ordered the Upgraded Version 340-408 uf 110-125VAC BlueStar capicator. It was easy to install (I took one wire off at a time from old capacitor to make sure all three are similarly placed). BlueStar capacitor was perfectly sized. It seemed to have a better physical construct quality than the original. Btw I am not a super handy kind of guy but this was easy. Run capacitor is only two outside screws and one inside screw away on an Hayward super pump 1HP (gold). This cost me a little research and 13 bucks, replacement took me 10 minutes max —- saving me hundreds in service/ replacement costs! Few days in, it is going strong. Easy, fast reliable start. Would definitely recommend!! ### ⭐⭐⭐⭐⭐ Pool pump capacitor *by E***Y on April 17, 2026* Needed this for a Hayward pool pump. Works great!!! ### ⭐⭐⭐⭐⭐ Good product good price. *by B***. on May 7, 2026* Good Product --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/446503805-bluestars-708-850-uf-mfd-50-60-hz-110-125](https://www.desertcart.com.kw/products/446503805-bluestars-708-850-uf-mfd-50-60-hz-110-125) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-21*