---
product_id: 64542132
title: "SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K)"
brand: "sdyk"
price: "₨6960"
currency: LKR
in_stock: false
reviews_count: 2
url: https://www.desertcart.lk/products/64542132-sdyk-4-pack-20w-4ft-plug-and-play-bypass-compatiblet8
store_origin: LK
region: Sri Lanka
---

# 45,000+ hours lifespan 65% energy savings 2500 lumens ultra-bright SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K)

**Brand:** sdyk
**Price:** ₨6960
**Availability:** ❌ Out of Stock

## Summary

> 💡 Light smarter, save bigger — upgrade your workspace glow today!

## Quick Answers

- **What is this?** SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) by sdyk
- **How much does it cost?** ₨6960 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/64542132-sdyk-4-pack-20w-4ft-plug-and-play-bypass-compatiblet8)

## Best For

- sdyk enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last Decades:** Premium LM80 LEDs and superior heat dissipation ensure 21 years of reliable use.
- • **Plug & Play Versatility:** Works seamlessly with or without ballast, single or dual-end powered.
- • **Slash Your Energy Bills:** Cut costs by 65% with just 20W replacing 48W fluorescent tubes.
- • **Certified Safety & Savings:** UL-listed and DLC-approved for safety and eligibility in rebate programs.
- • **Brilliant & Efficient Lighting:** Market-leading 125 lumens per watt for crisp, daylight-white illumination.

## Overview

The SDYK 4-Pack 20W 4ft T8 LED Tubes deliver ultra-bright 2500 lumens at 4000K/5000K with 65% energy savings over traditional 48W fluorescents. Featuring plug-and-play compatibility with or without ballast and single or dual-end power options, these UL-listed and DLC-certified tubes offer a 45,000+ hour lifespan backed by premium materials and a 5-year warranty, making them a smart, safe, and sustainable lighting upgrade.

## Description

SDYK 4-Pack of 20w 4ft (48’’) plug and play/bypass CompatibleT8 LED Tube Light, 2500lm (48W eq), 4000K/5000k, G13 Socket, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End POWERED, UL& DLC Type A+B   T8 4ft 20w led tube, with a market leading 2500 lumens. That is 125 lumens per watt  SDYK is an American brand that is recognized for its quality and durability .   this Type LED tube work with and without ballast, Work with Single-end and Dual-End POWERED,,if you dont know you fixture type, can buy this type led tube   UL and DLC Rated ,   SDYK4-Pack  High power factor ≥0.90,THD<25%;   Light source: SMD2835;  Available with clear and frosted cover  No UV or IR radiation.  Can operate in very low temperatures (-25°F to 140°F   1 pcs/pack packing size: 125*0.3*0.3cm / 49.2*1.1*1.1 in packing weight: 0.41kg/1pcs=0.91lb  Voltage: 100-277V  Wattage: 20W   Luminous flux: 2500lm  Beam angle: 120°  CCT: 4000K /5000k  CRI: 80+  Dimmable: No  IP rating: Damp locations  THD: <20%  Lifespan: 50,000 hours

## Features

- Cut your bills! -- SAVE 65% your electricity bill. Replace 48W fluorescent tubes by 20W LED. Reduce re-lamp frequency with a life time of 45,000+ rated hours (21 years with 3 hours/day 365 days.
- Ballast compatible/ bypass -- This type A+B tube can work with or without ballast, dual-end powered or dual-end ballast compatible. OR work with Single-End Power.
- High brightness -- T8 4ft 20w led tube, with a market leading 2500 lumens. That is 125 lumens per watt.
- UL&DLC certs to ensure safety -- Our led tubes are DLC-approved and thus eligible for State and Nationwide rebate programs ,For your safety, are UL-listed to avoid electrical shock and fire hazard, 5 years warranty
- Qualified material -- Brand LM80 SMD2835 LEDs and high quality Aluminium and PCB boards etc. ensure the good performance of our T8 tube heat dissipation. These makes our type A+B tube light owns a better lifetime than others.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SDYK |
| Light Type | LED |
| Special Feature | work with or without ballast, work with single ended power or dual ended power led tube. |
| Wattage | 20 watts |
| Bulb Shape Size | T8 |
| Bulb Base | G13 |
| Incandescent Equivalent Wattage | 20 Watts |
| Light Color | Daylight White |
| Voltage | 100277 Volts |
| Color Temperature | 5000 Kelvin |
| Number of Items | 4 |
| Brightness | 2500 Lumen |
| Shape | t8 |
| Connectivity Technology | Infrared |
| Controller Type | Push Button |
| Item Package Quantity | 4 |
| Light Source Type | LED |
| Specification Met | ul_listed |
| Light Source Wattage | 20 Watts |
| Control Method | App |
| Manufacturer | SDYK |
| UPC | 743447956720 |
| Part Number | SDYK-AT8tubeC-4FTD18w-4000k |
| Item Weight | 3.14 pounds |
| Package Dimensions | 48.4 x 5.04 x 1.26 inches |
| Is Discontinued By Manufacturer | No |
| Color | 5000k |
| Maximum Weight Capacity | 4.14 Pounds |
| Special Features | work with or without ballast, work with single ended power or dual ended power led tube. |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** SDYK
- **Light Type:** LED
- **Special Feature:** work with or without ballast, work with single ended power or dual ended power led tube.
- **Wattage:** 20 watts
- **Bulb Shape Size:** T8

## Images

![SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) - Image 1](https://m.media-amazon.com/images/I/61fSgeGOogL.jpg)
![SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) - Image 2](https://m.media-amazon.com/images/I/51Oe7nsog0L.jpg)
![SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) - Image 3](https://m.media-amazon.com/images/I/714pLy35OGL.jpg)
![SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) - Image 4](https://m.media-amazon.com/images/I/71vzVHDtsuL.jpg)
![SDYK 4-Pack 20w 4ft plug and play/bypass CompatibleT8 LED Tube, 2500lm (48W eq), 4000K/5000k, G13, Clear Cover, Work with/without ballast, Work with Single-end and Dual-End Powered,UL& DLC (5000K) - Image 5](https://m.media-amazon.com/images/I/71pWOWw-jRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ These LEDs are great substitutes for those long tubes.
*by A***. on October 12, 2018*

Incredible and and bright. will Order more when needed.

### ⭐⭐⭐⭐ Love the brightness, the 5000K spectrum, and the ability to wire 3 different ways.
*by M***F on March 12, 2018*

I replaced my garage fluorescent lighting with these things. I love them. I love the just-right 5000K not-too-yellow and not-too-white spectrum.They're bright. I rewired my fixtures without the fluorescent ballasts, with them powered all on one end.Update: Dropped rating from 5 to 4 stars. 24 of the LEDs stopped working on one light. So much for the "life time of 45,000+ rated hours".

---

## 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.lk/products/64542132-sdyk-4-pack-20w-4ft-plug-and-play-bypass-compatiblet8](https://www.desertcart.lk/products/64542132-sdyk-4-pack-20w-4ft-plug-and-play-bypass-compatiblet8)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-20*