---
product_id: 48296958
title: "Greenbrook T40S-C, White"
brand: "greenbrook"
price: "R$32"
currency: BRL
in_stock: false
reviews_count: 7
url: https://www.desertcart.com.br/products/48296958-greenbrook-t40s-c-white
store_origin: BR
region: Brazil
---

# Normal operation Battery backup Timed switching Greenbrook T40S-C, White

**Brand:** greenbrook
**Price:** R$32
**Availability:** ❌ Out of Stock

## Summary

> Illuminate your life with ease! 💡

## Quick Answers

- **What is this?** Greenbrook T40S-C, White by greenbrook
- **How much does it cost?** R$32 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/48296958-greenbrook-t40s-c-white)

## Best For

- greenbrook enthusiasts

## Why This Product

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

## Key Features

- • **Energy Efficient:** Minimum load of 40W ensures compatibility with various lighting types.
- • **Smart Scheduling:** Customize daily, weekly, or weekend light schedules effortlessly.
- • **Home Security Boost:** Random feature simulates occupancy, deterring potential intruders.
- • **Seamless Integration:** Easily replaces existing switches for a hassle-free upgrade.
- • **User-Friendly Design:** Hinged cover doubles as a manual light switch for convenience.

## Overview

The Greenbrook T40S-C is a versatile wall switch replacement that offers timed lighting control while maintaining standard switch functionality. With features like a battery backup, customizable scheduling, and a user-friendly design, it enhances both convenience and security in your home.

## Description

Product Description          Replaces existing 1 or 2-way light switch. Operates ceiling or wall lights with up to 6 on/off programmes. Simple one touch. Load min 40W, max 400W. 24 hour battery back up.             Box Contains          T40S-C

## Features

- Replaces a wall switch to provide timed switching of lights while still allowing normal switching operation. Hinged cover also operates as a light switch
- Random feature turns lights on and off when you are not at home
- Battery back up. Minimum load 40W (tungsten filament) 17W CFL. Not suitable for LED
- Replaces your exiting light switch (either 1 or 2 way circuit)
- Daily, weekly, weekday / weekend programmes available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Greenbrook |
| Model Number | T40S-C |
| Colour | White |
| Product Dimensions | 8.51 x 3.51 x 8.51 cm; 158.76 g |
| Voltage | 240 Volts |
| Item Weight | 159 g |

## Images

![Greenbrook T40S-C, White - Image 1](https://m.media-amazon.com/images/I/61c3Lov3rHL.jpg)
![Greenbrook T40S-C, White - Image 2](https://m.media-amazon.com/images/I/51DsohBY4dL.jpg)

## Questions & Answers

**Q: I dont have a power supply for this timer, I just need it to switch a light on/off  has it an internal battery that it can run on**
A: Hi, thanks for your question. Unfortunately this is a mains switch and does not run on a battery. I'm not aware of a product that can do this for you by battery. Apologies.

**Q: timer doe not seem to be functioning, I have followed the guide but it does not automatically switch on, also the red light at the bottom keeps flash**
A: I've had one of these switches for 10 years or so, and it has never given me any trouble. On the basis of this good experience, I bought another one about 4 months ago, and it works perfectly. A few months later I bought yet another, but this time it turned out to be faulty. The display remained blank even though I allowed 2 hours for the internal battery to charge. The vendor sent me a replacement unit which had the same fault. I've now returned both of the faulty units. I suspect that the manufacturer has produced a faulty batch. It's a shame because this is a good design, that is easy to program.

**Q: My back box is half inch deep, how much depth does this require for fitting?**
A: Mine is fitted in the original standard socket fitted when the house was built. I believe that it is deeper than 0.5”. Sorry I can’t be more help but I did find a dimension for the T40S-C of 27mm deep, that is around an inch I believe. Whether that is total depth or just the required socket depth it didn’t say but in either case it would appear your socket will be too shallow.

**Q: Can I use this switch to operate a 10W pond pump?**
A: No - The load (10W) is too small. It is intended as a light switch.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    I put one of these in our entrance hall about ...
  

*by M***G on Reviewed in the United Kingdom on 29 January 2016*

I put one of these in our entrance hall about 15 years ago, replaced it with an identical unit about 8 years ago, and the design of this is identical to the earlier ones. I think that speaks volumes for its design.  It's a doddle to wire in, and crucially is very intuitive to use. We've had more complex switches in other parts of the house and you need to get the manual out just to programme it after a power cut. This is simple - manual or timed switch, then programme times alternately for switch on or off, and that's it. You need a bulb that will work with timer switches. On dark night, we always come home to a lit hall.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works well
  

*by J***S on Reviewed in the United Kingdom on 20 November 2020*

Item was easy to fit myself, and appears to be working fine.  The numbers on the display are quite small, so I have to wear my glasses to configure the time and timer programs, but once set up it does the job it's supposed to do.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    It does the job but with limitations
  

*by D***6 on Reviewed in the United Kingdom on 13 April 2016*

Been using this timer switch for some considerable time because it does what I require, a porch light coming on and then going off at set times. Particularly useful If I am not around. This is actually my third switch but I have yet to find a suitable alternative. The previous two have done the job well for several years (about 5 I would guess) only to fail and need replacement. My previous switches have not liked low energy bulbs and the old style bulbs seem to last about three or four months and this is the problem. It is a bulb failure that has caused the switch to stop working on both previous occasions. Whilst a fuse change in the switch frequently solves the problem there appears to come a time when the switch says "no more" and ceases to function. My latest failure resulted in the switch not switching off and I had to remove and replace the fuse to switch lights on and off. Have not tried this particular switch with low energy bulbs but would anticipate it will be much the same as previous versions.

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**Shop now:** [https://www.desertcart.com.br/products/48296958-greenbrook-t40s-c-white](https://www.desertcart.com.br/products/48296958-greenbrook-t40s-c-white)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-29*