--- product_id: 401852895 title: "Sylvania 10 Pack 20668 CF18DD/E/841/ECO 18-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp" brand: "satco" price: "€ 77.46" currency: EUR in_stock: true reviews_count: 5 category: "Satco" url: https://www.desertcart.pt/products/401852895-sylvania-10-pack-20668-cf18dd-e-841-eco-18-watt store_origin: PT region: Portugal --- # 12,000 hours long life 18W energy-saving power 1150 lumens bright Sylvania 10 Pack 20668 CF18DD/E/841/ECO 18-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp **Brand:** satco **Price:** € 77.46 **Availability:** ✅ In Stock ## Summary > 💡 Light smarter, live brighter — don’t get left in the dark! ## Quick Answers - **What is this?** Sylvania 10 Pack 20668 CF18DD/E/841/ECO 18-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp by satco - **How much does it cost?** € 77.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/401852895-sylvania-10-pack-20668-cf18dd-e-841-eco-18-watt) ## Best For - satco enthusiasts ## Why This Product - Trusted satco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultra-Efficient 18W Power:** Slash your energy bills without sacrificing brightness—smart lighting for the eco-conscious professional. - • **Brilliant 1150 Lumens Glow:** Illuminate your space with crisp, cool white light that energizes your work and home environment. - • **Perfect 4100K Cool White Tone:** Boost productivity and focus with a balanced color temperature that’s neither too warm nor too harsh. - • **12,000 Hours of Reliable Light:** Enjoy years of consistent performance with built-in end-of-life safety shutdown for hassle-free maintenance. - • **Seamless Compatibility & Eco-Friendly:** Works flawlessly with electronic and dimming ballasts, plus TCLP compliance for guilt-free sustainability. ## Overview The Sylvania 10 Pack 20668 CF18DD/E/841/ECO offers 1150 lumens of cool white light at 4100K with an energy-efficient 18-watt rating. Designed for long-lasting use with 12,000 hours of life and built-in safety shutdown, these 4-pin double tube compact fluorescent lamps are compatible with electronic and dimming ballasts. Ideal for professionals seeking eco-friendly, reliable lighting solutions that enhance productivity and reduce energy costs. ## Description Sylvania 20668 DULUX 18W double compact fluorescent lamp with 4-pin base, 4100K color temperature, 82 CRI, for use with electronic and dimming ballasts, ECOLOGIC These lamps are long life, energy-saving alternatives for incandescent lamps. When paired with SYLVANIA linear ECOLOGIC lamps, all the fluorescent lamps in an installation will be TCLP compliant. Review: Worked well Review: Locally they sell these for 8 dollars each. And for some reason there's SO MANY OF THESE IN OUR APARTMENT!!! Why on earth do they put so many light holes when building these apartments?? My brother has 12 -- I KID YOU NOT -- 12 light holes in his livingroom ceiling, and it's not even a big livingroom! Needless to say, this product has brought light into our lives. ## Features - Lumens: 1150 - Base Type: G24q 2 - Life Hours: 12,000 - Wattage: 18 Watt - Color Temperature: 4100K ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00P6NUFJ2 | | Additional Features | Built in feature that will safely shut the lamp down at end of lamp life | | Brand Name | Satco | | Brightness | 1150 Lumen | | Bulb Shape Size | T | | Color Rendering Index | 82.0 | | Color Temperature | 4100 Kelvin | | Controller Type | Push Button | | Customer Reviews | 4.4 4.4 out of 5 stars (106) | | Incandescent Equivalent Wattage | 75 Watts | | Light Color | cool white | | Light Source Operating Life | 12000 Hours | | Light Source Wattage | 18 Watts | | Light Type | CFL | | Manufacturer | SYLVANIA | | Material Type | Glass | | Model Name | 20668 | | Model Number | 20668 | | Number of Items | 1 | | Package Quantity | 1 | | Shape | Tubular(T) | | Specific Uses For Product | Lamp | | UPC | 046135206689 | | Unit Count | 10.0 Count | | Voltage | 120 Volts | | Wattage | 18 watts | ## Product Details - **Brand:** Satco - **Bulb shape/size:** T - **Light type:** CFL - **Special features:** Built in feature that will safely shut the lamp down at end of lamp life - **Wattage:** 18 watts ## Images ![Sylvania 10 Pack 20668 CF18DD/E/841/ECO 18-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp - Image 1](https://m.media-amazon.com/images/I/51ri4uFc8nL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by #***9 on 5 August 2025* Worked well ### ⭐⭐⭐⭐⭐ Review *by N***A on 13 February 2024* Locally they sell these for 8 dollars each. And for some reason there's SO MANY OF THESE IN OUR APARTMENT!!! Why on earth do they put so many light holes when building these apartments?? My brother has 12 -- I KID YOU NOT -- 12 light holes in his livingroom ceiling, and it's not even a big livingroom! Needless to say, this product has brought light into our lives. ### ⭐⭐⭐⭐⭐ Review *by A***L on 20 January 2026* Great bulbs. Last long time. easy to install. ## Frequently Bought Together - Sylvania (10 Pack) 20668 CF18DD/E/841/ECO 18-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp, 10 Count (Pack of 1) - Sylvania (10 Pack) 20667 CF13DD/E/841/ECO 13-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp, 10 Count (Pack of 1) - Sylvania S6740 (10 Pack) 20669 CF26DD/E/841/ECO 26-Watt 4100K 4-Pin Double Tube Compact Fluorescent Lamp, 10 Count (Pack of 1), White --- ## 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.pt/products/401852895-sylvania-10-pack-20668-cf18dd-e-841-eco-18-watt](https://www.desertcart.pt/products/401852895-sylvania-10-pack-20668-cf18dd-e-841-eco-18-watt) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-01*