- Delivery time : approx 10 days
OSRAM CFL SQUARE 38W/835 3,500K GR10q CFL — 2,850 lm
€29.90
Tax excluded
OSRAM CFL SQUARE 38W/835 compact fluorescent lamp, flat square (2D) tube, 38 W, 2,850 lm, white 3,500 K, CRI 82, GR10q base (4-pin). Non-integrated (external ballast).
CFL SQUARE38 W2,850 lmGR10q3 500 K835
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Expert advice
Lighting specialist, Strasbourg
The OSRAM CFL SQUARE 38W/835 compact fluorescent lamp (colour code 835) is a low-energy lamp with a flat square (2D) tube and a GR10q base. It emits white light at 3,500 K and about 2,850 lumens, with good colour rendering (CRI 82).
A non-integrated lamp (no built-in ballast), it fits GR10q CFL luminaires and runs at 230 V through the fitting's ballast: 4-pin (electronic HF ballast, dimmable). Its long life (≈10,000 h) and low consumption make it an economical choice for commercial lighting.
Direct cross-references from other manufacturers: GE 2D 38W/835. Same GR10q base and same colour code 835: it replaces them without any change to the fitting.
Technical specifications
| Brand | OSRAM |
|---|---|
| Type | Non-integrated compact fluorescent lamp |
| Configuration | CFL SQUARE — flat square (2D) |
| Power | 38 W |
| Luminous flux | 2,850 lm |
| Colour temperature | 3 500 K (white) |
| Colour rendering (CRI) | > 82 |
| Base | GR10q |
| Pins | 4-pin (electronic HF ballast, dimmable) |
| Lifespan | ≈10,000 h |
| Voltage | 230 V |
| PHILIPS equivalent | No direct equivalent |
| GE Lighting equivalent | GE 2D 38W/835 |
| SYLVANIA equivalent | No direct equivalent |
| RADIUM equivalent | No direct equivalent |
| Disposal | Contains mercury — WEEE recycling |
Key benefits
✓GR10q base — direct replacement in CFL SQUARE luminaires
✓white 3,500 K light, CRI 82 — reliable colour rendering
✓4-pin (electronic HF ballast, dimmable)
✓Long life ≈10,000 h and low consumption
Ideal for
Offices and open spacesSchools and classroomsRetail and large storesDownlights and ceiling lightsCorridors and washrooms
Frequently asked questions
Is it compatible with my fitting?
Yes, if the fitting has a GR10q base, the same wattage (38 W) and the right ballast. This is a non-integrated lamp: it needs the fitting's ballast and does not connect directly to the mains.
What is the PHILIPS, GE Lighting or SYLVANIA equivalent?
This lamp directly matches GE 2D 38W/835. Identical GR10q base, 38 W wattage and 835 colour code: a like-for-like replacement.
What is the difference between 2-pin and 4-pin?
The 2-pin version has a built-in starter and runs on a magnetic ballast. The 4-pin version runs on a high-frequency electronic ballast (fast start, flicker-free, often dimmable). Bases differ: match the one in your fitting.
What does the 835 code mean?
The first digit (8) indicates a CRI of 80 to 89; the next two give the colour temperature: 835 = 3,500 K (white).
How is it recycled?
Like all fluorescent tubes, it contains a small amount of mercury: take it to a WEEE collection point (recycling centre or store), never with household waste.
Why order from STRASSELEC?
- ✓Lighting specialist — expert advice and professional references
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- ✓14-day returns (right of withdrawal)
Need advice, a batch or a large quantity? The STRASSELEC team is here to help.
📦 Minimum order quantity: 2 pieces
CFL SQUARE 38W 835 OSRAM GR10q
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OSRAM CFL SQUARE 38W/835 compact fluorescent lamp, flat square (2D) tube, 38 W, 2,850 lm, white 3,500 K, CRI 82, GR10q base (4-pin). Non-integrated (external ballast).
CFL SQUARE38 W2,850 lmGR10q3 500 K835