--- product_id: 28169853 title: "(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21\" Linear - 13 Watt T5 - Under The Counter Light Bulbs" brand: "circle" price: "KD 14.85" currency: KWD in_stock: true reviews_count: 13 category: "Circle" url: https://www.desertcart.com.kw/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21 store_origin: KW region: Kuwait --- # 20,000 hrs per bulb lifespan 1300 lumens bright 13W energy efficient (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs **Brand:** circle **Price:** KD 14.85 **Availability:** ✅ In Stock ## Summary > 💡 Illuminate your space like a pro—bright, efficient, and built to last! ## Quick Answers - **What is this?** (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs by circle - **How much does it cost?** KD 14.85 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/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21) ## Best For - circle enthusiasts ## Why This Product - Trusted circle brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Energy Smart & Eco-Friendly:** 13 watts of power with 100 lumens per watt efficiency keeps your energy bills low and your vibe high. - • **Perfect Cool White Ambiance:** 4100K color temp delivers crisp, professional-grade lighting for kitchens and workspaces. - • **Instant Brightness, Zero Wait:** Pop in and glow immediately with easy twist-and-lock installation. - • **Long-Lasting Light Powerhouse:** Enjoy a massive 120,000 total hours of reliable illumination across the 6-pack. - • **Versatile Under-Counter Essential:** Ideal for kitchens, RVs, patios, and marine settings—upgrade any space effortlessly. ## Overview The Circle F13T5/CW 6-pack fluorescent bulbs offer 1300 lumens of cool white light at 4100K, powered by energy-efficient 13-watt T5 tubes. Each 21-inch bulb lasts up to 20,000 hours, delivering a combined 120,000 hours of bright, instant-on illumination. Designed for under-counter use in kitchens, RVs, patios, and marine environments, these bulbs provide easy installation with a secure twist-lock base and come backed by a 1-year warranty for dependable performance. ## Description Product description The bulb burnt out again. When you're missing the light, and really not interested in heading to the Home Improvement store - choose Circle Lighting . Circle Lighting manufactures for YOU. You get high-quality bulbs packaged as a set. More than great value, this gets delivered to your door, in the colors you like. Wondering if you're looking at the right bulb? Understand the Specs. Where is this tubular bulb usually found? Typical under kitchen cabinetry - over the sinks and by cabinet corners Popular inside a motorcoach and on the patio of an RV Found in marine applications - chart lights, underwater spreader lights, navigation lights Perfect for storage rooms, garage basements and bathrooms Tip The numbers after F13T5 describes the color or whiteness of the light. You need to match the shape/size, wattage and voltage of a bulb. Color can always be chosen by what you like. More details Manufacturer: Circle Lighting Pack of 6 bulbs Average Rated Life per bulb 20,000 Max overall length: 21". Length Base to Base is 20 1/4" & Pin to Pin is 20 3/4". 120-volt fixtures Replacement for: GE 10086, Sylvania 21368, Philips 33253-6 and more Circle Lighting's Policy At Circle Lighting We use secure packaging materials so you get the bulbs you ordered, not broken glass. We know our bulbs are transit-safe and delivered headache free. ## Features - Bulb Specifications: These fluorescent bulbs, model number F13T5/CW , come in a 6 pack. It uses 13 watts to a nice spread of light. It is a cool white color, 4100K. The bulbs are tubular and are 21" long. - Easy & Quick Install: These linear bulbs come with 2 pins at each end so that you can just pop it into the socket and twist it into place. Easy to install and immediately lights up your home so that it looks fantastic. - Long Lifetime Value Pack: Each bulb gives you an average of 20,000 hours of light. With this 6 pack, you get a total of 120,000 hours of light! With our brand, you enjoy a lot of comfortable light. - Multi-Purpose Applications: The under-counter bulbs are most often used in the kitchen and in an RV. Also used on the patio, in many marine applications and for the lighting fixture under any cabinetry. - Reliable: We use secure packaging materials so you get the bulbs you ordered, not broken glass. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01EDMZNI4 | | Accepted Voltage Frequency | 100 to 120 Volts and 60 Hertz | | Additional Features | Instant On, Under cabinet lighting | | Best Sellers Rank | #3,424 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Fluorescent Tubes | | Brand | Circle | | Brand Name | Circle | | Bulb Base | G5 | | Bulb Shape Size | T5 1/2 | | Color | 4100 | | Color Rendering Index | 100 | | Color Temperature | 4100 Kelvin | | Connectivity Technology | Normal bulb | | Control Method | App | | Controller Type | Push Button | | Customer Reviews | 4.5 out of 5 stars 2,529 Reviews | | Efficiency | 100 lm/W | | Incandescent Equivalent Wattage | 13 Watts | | Included Components | 6 Pack Long life T5 Fluorescent Tubes, Perfect under the counter kitchen light bulbs, T5 fluorescent bulb | | Indoor Outdoor Usage | Indoor | | Item Dimensions W x H | 2.5"W x 21"H | | Item Weight | 12.8 Ounces | | Light Color | Cool White | | Light Output Maximum | 1300 Lumens | | Light Source Operating Life | 120000 Hours | | Light Source Type | Fluorescent | | Light Source Wattage | 13 Watts | | Light Type | Fluorescent | | Manufacturer | Circle® | | Manufacturer Part Number | F13T5/CW | | Manufacturer Warranty Description | 1 year warranty. Please contact us if you have any issues. We offer 100% customer satisfaction on all our products! | | Material Type | Glass | | Model Number | F13T5/CW | | Number of Items | 1 | | Package Quantity | 6 | | Power Consumption | 13 Watts | | Power Source | Corded Electric | | Shape | Tubular(T) | | Special Feature | Instant On, Under cabinet lighting | | Style Name | F13T5 | | UPC | 030465195553 | | Unit Count | 6.0 Count | | Voltage | 120 Volts | | Wattage | 13 watts | | White Brightness | 1300 Lumens | ## Product Details - **Brand:** Circle - **Bulb Shape Size:** T5 1/2 - **Light Type:** Fluorescent - **Special Feature:** Instant On, Under cabinet lighting - **Wattage:** 13 watts ## Images ![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 1](https://m.media-amazon.com/images/I/61T7SGQDcoL.jpg) ![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 2](https://m.media-amazon.com/images/I/41Ld1+RQ+YL.jpg) ![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 3](https://m.media-amazon.com/images/I/31MT8DCZW+L.jpg) ![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 4](https://m.media-amazon.com/images/I/61qzhJO-T4L.jpg) ![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 5](https://m.media-amazon.com/images/I/51FTA3vrGvL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***T on March 17, 2026* ### ⭐⭐⭐⭐⭐ Review *by N***S on February 25, 2026* ### ⭐⭐⭐⭐⭐ Review *by K***R on April 17, 2026* --- ## 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/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21](https://www.desertcart.com.kw/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-15*