• CLS Homepage
  Navigate the website from this page, with products down the left and main information pages along the top.
• About Us
  Our company history, goals and values - aiming to supply excellent lighting advice and products to the private and commercial sectors.
• Contact
  Contact and location details - don't hesitate to get in touch if you have any lighting enquiries at all or are looking for a specific product that you can't find on our website.
• Delivery
  Information on delivery charges, areas and times when ordering lighting supplies and light bulbs from our online shop or over the phone.
• News
  Updates on new lighting products, changes to our website, changes to the law for lighting and new innovations, plus anything else we think you might find interesting.
• Terms
  Terms and conditions for shopping with us - how we treat your privacy and your rights as a consumer.
• Resources
  A huge section of our website dedicated to information on all the kinds of lighting we supply, plus lighting history and lighting design.
• Fluorescent Lamps
• Advantages & Disadvantages Over Incandescent Lamps
• Cleanup Of Fluorescent Tubes
• History Of Fluorescent Tubes
• Mercury Toxicity
• Other Types Of Fluorescent Lamps
• Electrodeless Induction Lamps
• Fluorescent Black Light
• Plant Growth Lamps
• Sunbed And Tanning Lamps
• Ultraviolet Germicidal Lamps
• Ultraviolet Germicidal Irradiation
• Principles Of Operation Of Fluorescent Tubes
• Efficiency Of Fluorescent Tubes
• Electrical Aspects Of Operation Of A Fluorescent Tube
• Fluorescent Tube Flicker
• Mechanisms Of Fluorescent Lamp Failure At End Of Life
• Emission Mix Runs Out
• Failure Of Integral Ballast Electronics
• Failure Of The Phosphor
• Fluorescent Tube Runs Out Of Mercury
• Method Of Starting A Fluorescent Lamp
• Phosphors And The Spectrum Of Emitted Light
• Usage Of Fluorescent Tubes
• CLS Recycling Services
• WEEE Regulations And You
• Lighting History
• Lighting Timeline
• Sir Humphry Davy
• Sir Joseph Wilson Swan
• Thomas Alva Edison
• Low Energy Light Bulb
• Disposal & Recycling Of Low Energy Bulbs
• How Low Energy Light Bulbs Work
• Low Energy Light Bulb Usage
• Metal Halide Lamps
• Metal Halide Lamp Ballasts
• Colour Temperature Of Metal Halide Lamps
• Components Of Metal Halide Lamps
• End Of Life Of Metal Halide Lamps
• Metal Halide Lamp Operation
• Starting & Warm Up Metal Halide Lamps
• Uses Of Metal Halide Lamps
• Sodium Lamps
• Sodium Lamp Light Pollution Considerations
• Sodium Lamp Operation
• White SON
• Lighting Projects
• Aquarium Lighting Project
• Bathroom Lighting Project
• Bedroom Lighting Project
• Dining Room Lighting Project
• Home Office Lighting Project
• Kitchen Lighting Project
• Living Room Lighting Project
• Outdoor Lighting Project
• Pool Lighting Project
• Special Home Lighting Projects
• Kitchen Lights Project
• LED Lighting
• LED Lamp Radiation Angle
• Technology Overview Of LED Lamps
• Advantages Of LED Lights
• LED Lighting Luminous Flux
• LED Lamp Luminous Intensity
• Incandescent Light Bulbs
• Applications Of Incandescent Light Bulbs
• Incandescent Lamp Efficiency
• Electrical Characteristics Of Incandescent Lamps
• Incandescent Bulb Operation
• Luminous Efficacy & Efficiency Of Incandescent Bulbs
• Safety, Handling and Disposal
• Compact fluorescent lamps
• Halogen Bulbs
• High Intensity Discharge (HID)
• Light Emitting Diode (LED)
• Mercury Lamps
• Ultraviolet (UV) Light
• Plant Growth Lights
• Xenon Bulbs
• Lighting Fittings
• Germicidal Lamps
• SAD
• Lighting In Creating Mood
• Daylight Lighting
• Shatterproof Lamps
• Heat Lamps
• Links And Resources

• 2D Low Energy Tubes
  
• Candle Bulbs
• Charmlight Bulbs
• Circular Fluorescent Tubes
• Coloured Lamps
  • Coloured Metal Halide
  • Coloured Spotlights
• Control Gear
  • Fluorescent Control Gear
    • Electronic
  • Ignitors
  • Control Gear Kits
• Craftlights
• Crown Silver Bulbs
• Daylight & SAD Tubes
  • Philips Activiva Full Spectrum
    • Activiva Active
    • Activiva Natural
• Emergency Lighting
  • Batteries
• Festoon Light Ropes
• Fluorescent Tubes
  • Ordinary Fluorescent Tubes
  • Special Fluorescent Tubes
  • TL5 Ultra Slimline Fluorescent
• Fly Killers
• Garden Lighting
  • Garden Spot Lights
• Globe Lamps
• Golf Ball Round Lamps
• Kitchen Lights
• Lamp Changing Pole
• Light Fittings
  • Ceiling Spotlight Fittings
  • Floodlight Light Fittings
  • Fluorescent Light Fittings
    • Diffusers
    • T5 High Frequency Fittings
  • High Bay Industrial Fittings
  • Low Bay Industrial Fittings
  • Low Energy Fittings
  • Induction Floodlighting
    
• Low Energy Bulbs
  • Low Energy Candle Bulbs
  • Low Energy Outdoor Bulbs
  • Low Energy Reflector Bulbs
  • Philips Brand Low Energy Bulbs
  • Spiral Type Low Energy
  • Stick Style Low Energy Bulbs
  • LED Bulbs
  • Dimmable Low Energy Bulbs
    • Dors Dimming Low Energy Bulbs
    • Dimmerable Low Energy Bulbs
• Low Voltage Spotlights
  • 12 Volt Capsules
• Mercury Lamps
• Metal Halide
  • Ceramic Metal Halide
• Non Fluorescent Low Energy
  • Halogen G9 Adaptor
• Ordinary Light Bulbs
• Oven/Appliance Lamps
• Picture Lights
• PL Lamps
• Plant Growth Lamps
• Projector Lamps
• Pygmy Lamps
• Heat Lamps
  • Patio Heaters
• Quartz Heat Lamps
• Shatterproof Lamps
• Sodium Lamps (SON)
• Spotlights
• Theatre Lamps
• Tungsten Halogen
• U Tubes
• UV Germicidal
• LED Bulbs
  • Golfball Shape LED Bulbs

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