---
product_id: 47961741
title: "Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G]"
brand: "osram"
price: "€ 44.61"
currency: EUR
in_stock: true
reviews_count: 13
category: "Osram"
url: https://www.desertcart.es/products/47961741-osram-28w-2d-square-4-pin-gr10q-cap-standard-white
store_origin: ES
region: Spain
---

# 8000 hours rated life 28W power, 80% less energy Square shape for uniform light Osram 28w 2D Square 4-Pin Gr10q Cap Standard White (3500k) Compact Fluorescent Lamp [Energy Class G]

**Brand:** osram
**Price:** € 44.61
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate smarter, live brighter — don’t get left in the dark!

## 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?** € 44.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/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:** With an 8000-hour lifespan, enjoy years of consistent, reliable lighting that keeps your space effortlessly illuminated.
- • **Sleek & Slim Design:** Low-profile square shape fits seamlessly into slimline wall or ceiling fixtures for a modern, clutter-free look.
- • **Energy-Savvy Brilliance:** Consumes just 28W but shines like a 150W bulb—cut your energy bills without sacrificing brightness.
- • **Versatile Compatibility:** Works flawlessly with both electronic and conventional control gear, making upgrades and replacements hassle-free.
- • **Perfectly Balanced Light:** 3500K standard white color temperature with a CRI of 85 ensures clear, natural illumination ideal for professional and home environments.

## Overview

The Osram 28W 2D Square 4-Pin Compact Fluorescent Lamp delivers energy-efficient lighting with 80% less power consumption than traditional bulbs, a long 8000-hour lifespan, and a sleek square design for uniform light distribution. Operating at 3500K standard white, it’s perfect for modern ceiling or wall fixtures, compatible with various control gear, and offers a reliable, cost-effective upgrade for professional and home settings.

## 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 | 1,189 in Lighting ( See Top 100 in Lighting ) 28 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 (4,149) |
| 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 Spain*
*Store origin: ES*
*Last updated: 2026-01-24*