Formerly Tidy Hydro | Established 2013

400w Philips SON-T PIA Plus HPS Bulb


General Information

SON-T is a cost-efficient and reliable solution in High Pressure Sodium.

High Pressure Sodium lamp with clear tubular outer bulb, high output and long reliable lifetime.

  • Initial investment saving options with "Plus" concept
  • High lumen output, maintained over life
  • Minimal maintenance cost.
  • Clear tubular outer bulb
  • Ceramic discharge tube with Unique Philips Integrated Antenna (PIA) concept enabling long and reliable lifetime
  • "Plus" concept with high efficacy translates into high light output and improved lumen maintenance
  • Robust construction with few welding points is highly vibration- and shock-resistant, further reducing early failures and extending lamp life
  • Dimmable



Operating and Electrical

 Lamp Current (EM) (Nom) 4.6 A

Ignition Supply Voltage (Max) 198 V
Ignition Peak Voltage (Max) 2800 V
Re-Ignition Time (Min) (Max) 120 s
Ignition Time (Max) 5 s
Voltage (Max) 115 V
Voltage (Min) 85 V
Voltage (Nom) 100 V

Controls and Dimming
Dimmable Yes
Run-Up Time 90% (Max) 5 min


Product data

General Information
Cap-Base E40 [ E40]
Operating Position UNIVERSAL [ Any or Universal (U)]
Life To 5% Failures (Nom) 12000 h
Life To 20% Failures (Nom) 20000 h
Life To 50% Failures (Nom) 28000 h
System Description External Ignitor

Light Technical
Color Code 220 [ CCT of 2000K]
Luminous Flux (Rated) (Min) 43200 lm
Luminous Flux (Rated) (Nom) 48000 lm
Lumen Maintenance 2000 h (Min) 94 %
Lumen Maintenance 2000 h (Nom) 97 %
Lumen Maintenance 5000 h (Min) 88 %
Lumen Maintenance 5000 h (Nom) 94 %
Correlated Color Temperature (Nom) 2000 K
Luminous Efficacy (rated) (Nom) 123 lm/W
Color Rendering Index (Max) 25
Color Rendering Index (Nom) -

Mechanical and Housing
Bulb Finish Clear
Cap-Base Information -

Approval and Application
Energy Efficiency Label (EEL) A+
Mercury (Hg) Content (Nom) 24.5 mg
Energy Consumption kWh/1000 h 431 kWh

Luminaire Design Requirements
Bulb Temperature (Max) 450 °C
Cap-Base Temperature (Max) 250 °C

Product Data
Full product code 692059027302500
Order product name SON-T 400W E E40 1SL/12
EAN/UPC - Product 6920590273025
Order code 928487300094
Numerator - Quantity Per Pack 1

Datasheet, 2016, October 8 data subject to change



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Delivery Information

We will dispatch your order as soon as possible and should normally be received within 3 to 5 working days in some cases please allow up to a maximum of 14 days. The delivery rate you pay is calculated on two things, the weight of your order and the postcode you enter. Currently we only deliver to the UK.

Delivery Rates
Weight Delivery Cost
0-5kg £3.50
5-20kg £7.50
20-30kg £15.00
30kg+ £50.00

Free shipping for orders over (Excluding bulky items) £150

Returns Policy and Procedures:

Your rights to return goods are protected under the EU distance selling directive. You are responsible for the cost and risk of damage when returning goods so postal insurance should be taken out to cover the value of the goods.

Unwanted Item(s).

If you have made a purchase form Tidy Horticulture you are entitled to cancel your order and return the goods within 7 working days for a full refund, including the cost of delivery. Notify us by telephone or email quoting the order number given and you will receive your refund within 30 days. Goods returned should be in a saleable condition and in their original packaging and with proof of purchase. Any unwanted items returned after this date will be at the discretion of management and any postage costs paid by us will be recovered.

Item(s) damaged in transit.

If your goods have been delivered by a courier and the item(s) or packaging are damaged then please sign for your delivery as ‘damaged’ and notify us by telephone or email within 48 hours. If the item(s) have been damaged in transit then you can return it to us within 30 days of receipt for a full refund or exchange.

Item(s) faulty.

If the goods delivered are faulty then you have a right to return them within 30 days. Make sure all warranty information is kept with your item. After 30 days you can also contact the manufacturer directly to enable them to rectify the problem for you. All goods must be returned in their original packaging for a full refund or exchange.


Tidy Horticulture
Unit 60 - 61
Faraday Mill Business Park
Faraday road
PL4 0st

Tel: 01752 225 225