---
product_id: 47961741
title: "Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G]"
brand: "osram"
price: "12.35 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Osram"
url: https://www.desertcart.com.om/products/47961741-osram-28w-2d-square-4-pin-gr10q-cap-standard-white
store_origin: OM
region: Oman
---

# 8000 hours rated lifespan 80% less energy than GLS bulbs 28W power, 150W incandescent equivalent Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G]

**Brand:** osram
**Price:** 12.35 OMR
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate smarter, not harder — light that works as hard as you do!

## Quick Answers

- **What is this?** Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G] by osram
- **How much does it cost?** 12.35 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/47961741-osram-28w-2d-square-4-pin-gr10q-cap-standard-white)

## Best For

- osram enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Glow:** Up to 8000 hours of reliable, consistent illumination—less hassle, more productivity.
- • **Perfect Warm White:** 3500K color temperature offers a balanced, professional ambiance for any workspace.
- • **Slim & Sleek Design:** Low-profile square shape fits modern slimline fixtures seamlessly.
- • **Energy-Smart Brilliance:** Consumes just 28W while delivering light equivalent to a 150W incandescent.
- • **Universal Compatibility:** Works flawlessly with both electronic and conventional control gear for easy upgrades.

## Overview

The Osram 28W 2D Square 4-Pin Compact Fluorescent Lamp delivers efficient, long-lasting lighting with an 8000-hour lifespan and 80% energy savings compared to traditional incandescent bulbs. Its sleek square design ensures uniform light distribution, while the 3500K color temperature provides a crisp, professional white light ideal for modern office and home environments. Compatible with various control gear, this lamp is a reliable, cost-effective upgrade for energy-conscious professionals.

## Description

Product Description Low energy 2d style light bulb has 8000 hours rated life and uses 80% less energy than gls. u350 Box Contains 1 x 28w 2d 4 pin col 835 standard white [3500 K] osram branded(osram)

Review: Simple choice. Reliable and Affordable Replacement. - Compact fluorescent lamp is a solid replacement for older fixtures. The 3500K brightness is perfect for general lighting, providing clear, consistent light. It offers great value for money, with good quality and durability. While it’s in Energy Class G, it’s still more efficient than older incandescent bulbs. Overall, a reliable and cost-effective choice for compatible fixtures. Highly recommended!
Review: Bathroom light - Accurate description and quick delivery

## Features

- Low profile for slimline wall or ceiling fittings.
- Uses 80% less energy then gls. 8000 hours rated life.
- 8000 hours rated life.
- 28w is equivalent to 150w.
- Note:Average ignition time at ambient temperature is 3-5 seconds (maximum 10 seconds), with a run-up time from 60-100% within 150 seconds
- Square shape provides uniform distribution of light
- Suitable for operation on electronic and conventional control gear
- Overall length : 205.0 mm, Outer bulb : T12
- Maximum diameter : 17.0 mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00146BMGU |
| Average Life | 8000 Hours |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,355 in Lighting ( See Top 100 in Lighting ) 32 in Fluorescent & Neon Tubes |
| Brand | OSRAM |
| Bulb Length | 205 Millimetres |
| Cap Type | GR10 |
| Certification | Energy rating A |
| Colour | Frosted |
| Colour Rendering Index (CRI) | 85 |
| Colour Temperature | 3500 Kelvin |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,153) |
| Date First Available | 18 Jan. 2011 |
| Finish types | White |
| Guaranteed software updates until | unknown |
| Incandescent Equivalent | 150 Watts |
| Included Components | 3 lamps |
| Item Weight | 220 g |
| Item model number | 0280-028835o |
| Lamp Power Factor | 0.6 |
| Luminous Flux | 1900 Lumen |
| Manufacturer | Osram |
| Material | Plastic |
| Number of Items | 1 |
| Part Number | 0280-028835o |
| Plug Format | Connector, female |
| Power and Plug Description | electric |
| Product Dimensions | 20.5 x 20.5 x 1.7 cm; 220 g |
| Shape | Square |
| Special features | Energy Efficient |
| Specific Uses | Ceiling |
| Style | E27 GLS BULB |
| Type of Bulb | Compact fluorescent |
| Voltage | 120 Volts |
| Wattage | 28 Watts |

## Product Details

- **Brand:** OSRAM
- **Bulb shape size:** T6
- **Light type:** CFL
- **Special feature:** Energy Efficient
- **Wattage:** 28 watts

## Images

![Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G] - Image 1](https://m.media-amazon.com/images/I/51CfAFoKC8L.jpg)

## Questions & Answers

**Q: How big is it? Description says 53cm? That's half a meter. Can't imagine that being right. What's the actual size please?**
A: It's about 20 cm square.

**Q: on the 28 2d 4 pin light what position should the 9 little switches be in on the back plate**
A: There are no switches on the back of this lamp. 
Insert the 4 pins into the fitting and turn on...

**Q: Is this warm white (yellow)or cool (blue)?**
A: Warm white

**Q: Mine doesnt say Orsam anywhere... neither on the box nor the bulb. is this normal or was i sold a fake?**
A: If your product did not arrive in a green box clearly marked with the Osram logo and there are no markings on the lamp then it's not the genuine article...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple choice. Reliable and Affordable Replacement.
*by M***N on 25 December 2024*

Compact fluorescent lamp is a solid replacement for older fixtures. The 3500K brightness is perfect for general lighting, providing clear, consistent light. It offers great value for money, with good quality and durability. While it’s in Energy Class G, it’s still more efficient than older incandescent bulbs. Overall, a reliable and cost-effective choice for compatible fixtures. Highly recommended!

### ⭐⭐⭐⭐⭐ Bathroom light
*by P***D on 11 January 2026*

Accurate description and quick delivery

### ⭐⭐⭐⭐ Good value
*by P***P on 2 September 2025*

Good replacement bulbs, that are not available on the high street

## Frequently Bought Together

- Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G]
- Philips S10 Starter Pack of 2

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-03*