Description
This is a 9W LED replacement for the four pin G24q PL lamp, the stick shaped twin tube fitted to a great many commercial downlights and bulkheads. It puts out 1300 lumens at 4000K, a cool white, and the retail pack rates it as a 26W replacement. LED light sources reach full brightness the moment they are switched on, so there is none of the slow warm up a compact fluorescent tube needs on a cold morning. The lamp is not dimmable, and its energy rating is D.
PL lamps of this shape are usually found in recessed downlights, wall bulkheads, stair and corridor fittings, and the enclosed ceiling fittings used in offices, hallways, landings, garages and stockrooms. 4000K is the neutral cool white most people associate with a working space: cleaner and brighter than the yellow of a 2700K bulb, but without the blue edge of a 6500K daylight lamp. It suits a room you want to see clearly in rather than settle down in, and it keeps white paint, signage and labelling looking true. Check the cap on the old lamp before you order, because G24q has four pins and the similar looking G24d has two.
One thing to read before you buy: the pack states that this lamp is not compatible with an electronic ballast, and that the ballast must be removed and the fitting rewired direct to mains, with installation carried out by a qualified electrician. Done that way, there is no control gear left in the circuit to fail. The pack prints a 30 year lifespan and 30,000 hours. Each box holds one lamp, and the minimum order is 10, sold in multiples of 10. Our wider range also runs to 2G11 PLL and 2G7 PLS lamps in the same 4000K cool white.
Specification
| Fitting |
G24q, 4 pin |
| Shape |
PLD |
| Technology |
LED |
| Wattage |
9W |
| Brightness |
1300lm |
| Equivalent |
26W, as stated on the pack |
| Colour temperature |
4000K, cool white |
| Dimmable |
No |
| Energy rating |
D |
| Lifespan as printed |
30,000 hours, printed on the pack as a 30 year lifespan |
| Sold as |
Box of 1 lamp |
| Minimum order |
10, sold in multiples of 10 |
Frequently Asked
Will this drop straight into my existing four pin PL fitting?
Only after rewiring. The pins match a G24q holder, but the pack states the lamp is not compatible with an electronic ballast, so the ballast has to be removed and the holder wired direct to mains by a qualified electrician.
What is the difference between G24q and G24d?
G24q has four pins and G24d has two. They look alike at a glance, so count the pins on the lamp you are taking out before you order this one.
How much light is 1300 lumens, and what does 4000K look like?
1300 lumens is a useful working level for a single downlight or bulkhead, and 4000K reads as a neutral cool white: brighter and cleaner than a warm white lamp, without the blue cast of a daylight one.
Can I put this on a dimmer?
No. Both the specification and the pack give it as not dimmable, so it should be run on a plain on and off switch rather than any kind of trailing or leading edge dimmer.
Is an IP rating given for this lamp?
No IP rating is printed by the manufacturer and we do not state one. It is a standard indoor lamp intended for the dry, enclosed or open fitting it replaces.
How many do I have to buy?
Each box contains one lamp, and this line carries a minimum order of 10 units, sold in multiples of 10, so orders go up in tens.