E40 to PGZ18 Lamp holder Socket Adapter Converters

E40 to PGZ18 lamp holder adapter



E40 to PGZ18 Lamp holder adapter is available for use with the 315w CMH lamps.

It allows the user to convert a “standard” reflector with an E40 fitting into a 315w reflector. This is particularly useful if you already have a reflector you like or if you’re working to a budget. Installation is very easy!

  • Simply screw the PGZ 315 lamp holder into the reflector and it’s ready to accept the lamp. Please be sure to switch all power supplies off first!
  • The E40 to 315w PGZ18 Lamp holder converter is available on it’s own or in a kit with a HID ballast and lamp.
  • Convert your reflector with full spectrum 315w CDM that gives more yield per watt than HPS!



E40 to PGZ18 ceramic lamp socket



E40 to CDM Converter / Adapter converts your current reflectors E40 lamp fitting for use with a CDM lamp.


CDM lamps give you incredible full spectrum light which gives much better quality than you would expect from HPS lighting alone. CDM (Ceramic Discharge Metal-Halide) lamps give out an intense full spectrum light that plants love.

Save on your electricity bills and produce the same yields!
CDM – full spectrum light output that plants love
Less heat output than equivalent HPS lights
Gives off 1.9 umols PPF per watt – amazingly efficient!

1 x E40 to CDM lamp socket Converter / Adapter.

N100230-SKT 315W T12 Ceramic Metal Halide Lamp 3100k is a flowering, budding spectrum lamp designed for maximum efficiency. Philips Elite Agro 315W T12 Lamp provides a compact and efficient metal halide solution for the horticulture market.

This lamp, combined with the efficient ballast, provides outstanding growth light performance over the life of the product.


N100230-SKT 315W lamp holder T12



3100k color temperature, High 92 CRI, 33,000 initial lumens (105Lm/W). High 90% lumen maintenance at 8,000 hr / High 85% PPF maintenance at 20,000 hr. Unique Open Rated Lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use.

Includes Philips 315-Watt Elite Agro CDM 3100K Lamp and Hydro Crunch E39 Mogul base/PGZ18 Socket Adapter.

  • 3100K Color Temperature, High 92 CRI, 33,000 Initial Lumens (105Lm/W)
  • High 90% lumen maintenance at 8,000 hr / High 85% PPF maintenance at 20,000 hr
  • Light appearance: 3100K (bright white)
  • Energy used: 315 watts
  • Lamp Voltage: 98 V


CMH 315-Watt Grow Light Socket Adapter PGZ18 Converter


How the E40 to CDM light socket Converter / Adapter Works
The E40 to CDM Converter / Adapter simply screws into your reflectors E40 lamp fitting, this then lets you use CDM lamps alongside a specific CDM ballast.


How to use the E40 to CDM Converter / Adapter:
PLEASE NOTE: The 315w CDM lamps need to be bedded in as follows: on first illumination the lamp needs to be run continuously for a minimum of 15 minutes. This will allow the metals within the lamp to fuse correctly.


If the above is not adhered to, lamp warranty claims will be void.

If the above is not adhered to, lamp warranty claims will be void.


PGZ18 PGZX18 Light Socket diagram



Simply screw the convertor into your current reflectors E40 fitting and screw the CDM lamp into the convertor in your reflector as tightly as possible by gripping the lamp with a clean, dry cloth.

If the lamp is not screwed in as tightly as possible, arcing can occur between the centre contact of the lamp and the lamp-holder.


This melts the solder contact on the bottom of the lamp, causing damage and making it un-useable. Make sure that the lamp is clean and completely free of fingerprints and other contaminants. Finally, make sure that your reflector is hung at the correct height for your CDM Lamp.


315-Watt CMH Grow Light Socket Adapter PGZ18 Lamp holder



The wattage of your ballast MUST match the wattage of the lamp you are using or there will be a high risk of fires or equipment damage.

Only use the JAMES ballasts that comes with this kit for firing up the CDM lamps. Never use a HPS or MH ballast wswitch itM lamps. Connect the mains plug into an electrical outlet socket and switch it on. The JAMES CDM ballast will start-up and light the lamp.

Please note: With CDM lamps until they have achieved at least 10 hours of use (from new) that they should not be switched off for at least 2 minutes after switch-on. This includes testing during the initial installation.

If it happens then the light needs to be left off for at least 1 hour before switching back on again. Failure to do this will damage the lamp and will lead to ignition problems.



What is the difference between E40 and PGZ18 sockets?
E40 is a larger screw base used for high wattage lamps, while PGZ18 is a twist and lock base used for compact fluorescent lamps.

Can I use this adapter for LED bulbs?
Yes, as long as the LED bulb has a PGZ18 base and the wattage is compatible with the adapter.

Is this adapter suitable for outdoor use?
Yes, the adapter is made of durable materials and can be used both indoors and outdoors.

Can I use this adapter for a T8 fluorescent lamp?
No, this adapter is only designed for E40 base lamps to be used with PGZ18 socket.

Is this adapter suitable for use with dimmer switches?
It depends on the specific product, but many adapters are compatible with dimmer switches.

Can I use this adapter in a damp location?
Yes, as long as the adapter is rated for damp locations and the lamp used with it is suitable for damp locations.


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