---
product_id: 166139609
title: "MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6)"
brand: "mastery mart"
price: "€ 50.18"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.sk/products/166139609-mastery-mart-led-gu10-spotlight-light-bulbs-50-watt-equivalent
store_origin: SK
region: Slovakia
---

# 25000 Hours Life 5.5W Power Dimmable Feature MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6)

**Brand:** mastery mart
**Price:** € 50.18
**Availability:** ✅ In Stock

## Summary

> Illuminate Your Space with Confidence! ✨

## Quick Answers

- **What is this?** MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) by mastery mart
- **How much does it cost?** € 50.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/166139609-mastery-mart-led-gu10-spotlight-light-bulbs-50-watt-equivalent)

## Best For

- mastery mart enthusiasts

## Why This Product

- Trusted mastery mart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bright Savings:** Replace 50W halogen with 5.5W LED for 89% energy savings!
- • **Easy Installation:** Universal GU10 base fits all fixtures—no buzzing or flickering!
- • **Quality Assurance:** 100% inspected for perfection—satisfaction guaranteed or your money back!
- • **True Color Rendering:** Experience vibrant colors with 85+ CRI for natural beauty in every room.
- • **Long-Lasting Performance:** Enjoy up to 25,000 hours of brilliant lighting—over 23 years of use!

## Overview

The MASTERY MART LED GU10 Spotlight Light Bulbs offer a powerful 5.5W equivalent to a traditional 50W bulb, providing 400 lumens of soft white light (2700K) while saving up to 89% on energy costs. With a lifespan of 25,000 hours, these dimmable bulbs are perfect for various settings and are easy to install with a universal GU10 screw base. UL Listed and Energy Star Certified, they ensure quality and performance, backed by a satisfaction guarantee.

## Description

MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6)

## Features

- ➤ Pack of 6, 2700K Soft White. 5.5 Watt, 400 Lumens. Dimmable. UL Listed, Energy Star Certified. 40 Degrees Beam Angle.
- ➤ GREAT SAVINGS WITH SAME BRIGHTNESS – Save up to 89% energy and your bill by replacing 50 Watt halogen bulb with our 5.5 Watt LED bulb. Same brightness but costs only 11% of your old light bulbs. Up to 25,000 Hours of lifespan enable the perfect lighting solution for at least 23 years (3 hours per day)
- ➤ EXCELLENT COLOR CONSISTENCY& FLEXIBILITY – Dimmable. 2700K Soft White. Perfect fit for track lights and spotlights for living room, bathroom, bedrooms and hallways, depends on your personal preference. 85+ CRI (color rendering value) means colors remain true and natural, always.
- ➤ EASE OF INSTALLATION& UNIVERSAL SCREW BASE ACROSS NORTH AMERICA - Standard MR16 model across North-America, GU10 screw base. Install these Bulbs into all GU10 screw base fixtures directly. Unlike fluorescent bulbs, these bulbs are free of buzz, flickering, UV and mercury.
- ➤ WORLD CLASS QUALITY - We conducted 100% full inspection. No defected bulbs will be Delivered to you. Great value, top quality, excellent performance but costs less than other brands. All of the Mastery Mart’s LED bulbs are certified by UL and Energy Star. REFUND MONEY FREELY with no questions if our LED light bulb does not satisfy you.

## Images

![MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/71jWh4FDOdL.jpg)
![MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) - Image 2](https://m.media-amazon.com/images/I/717rLElRLtL.jpg)
![MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) - Image 3](https://m.media-amazon.com/images/I/71Yr+8v06eL.jpg)
![MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) - Image 4](https://m.media-amazon.com/images/I/71wBCaoiYvS.jpg)
![MASTERY MART LED GU10 Spotlight Light Bulbs, 50 Watt Equivalent, 5.5W Dimmable, Full Glass Cover Reflector, 2700K Soft White, 25000 Hours, UL Listed, Energy Star Certified (Pack of 6) - Image 5](https://m.media-amazon.com/images/I/518pSVHFohL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    LED > Halogen
  

*by K***S on Reviewed in the United States 🇺🇸 on June 23, 2023*

They cut the cost of lighting by 90%

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Flickers on Insteon dimmer switch
  

*by M***B on Reviewed in the United States 🇺🇸 on April 13, 2023*

I used these to replace a bunch of halogen lights. I like that they're dimmable, but the problem is that with my Insteon dimmer, these would flicker quite a bit on the dimmer levels. Very noticeable. My solution was to keep one halogen bulb in the track to give the switch more of a load, and now I can dim down all the way without any flicker, but I wish I didn't have to do that.I was hoping these bulbs had more of a "uplight" glow since my light fixtures are glass, and the old halogen bulbs would actually shine a little light upwards towards the ceiling as well. It provides a nice glow when they do that, but so far I just haven't found any LED bulbs that can simulate that same effect. It would probably require a specific couple of LEDs on the back part of the LED bulb to really pull that off, but I think enough people have a need for it that hopefully, someday, a company will do this.For now though, these definitely provide more of that "uplight" glow effect than other GU10 LED bulbs I've tried. At full brightness they do give the upper part of the glass fixture a bit of glow. Nowhere near as much as the halogen, but enough so you can see it and appreciate it. I guess that's something.A different brand/model of dimmer, perhaps one of the Lutron models, might give better dimming performance, but I'm kind of locked into the Insteon ecosystem at the moment. They're good dimmers and work well with most LED bulbs, but there are some where it just doesn't like them and they flicker, like these.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Energy efficient and long lasting.
  

*by K***N on Reviewed in the United States 🇺🇸 on February 22, 2023*

I bought a ten pack in May of '20 to replace the 10 halogen 50w bulbs in some lighting. At 6w (advertised) each they are using 12% of the energy and just as bright as the ones that came with the light fixtures. The bulbs get warm, but not egg cooking hot like the old halogens.As of now, February '23 I have one bulb of the 10 that has started flickering occasionally. I don't know exact run time, but the set of five that needs one replaced is the fixture that gets more use than the other.They are plenty bright for their purpose as well, just as bright as the halogens.I'm impressed with the run time and energy use. I'm tempted to measure the actual power draw and compare to the advertised amount. Overall a good purchase, I'd recommend them.

---

## 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.sk/products/166139609-mastery-mart-led-gu10-spotlight-light-bulbs-50-watt-equivalent](https://www.desertcart.sk/products/166139609-mastery-mart-led-gu10-spotlight-light-bulbs-50-watt-equivalent)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-01*