Name: GL 4035 PRO LED Module
Brand: Glowfy
SKU: GF-PRO-4035-WW-12V
Availability: InStock

Question 1

When should I choose the GL 4035 over the GL 4030?

Accepted Answer

Choose the GL 4035 when letter height exceeds approximately 300 mm, when the return depth is greater than 80 mm, or when a bold, high-visibility halo is the specified outcome. At 190 lm and 2W, the GL 4035 produces 31% more output than the GL 4030 at 145 lm / 1.5W. For standard-size halo letters, the GL 4030 is sufficient and more economical.

Question 2

What is the maximum number of GL 4035 modules I can wire in a single run?

Accepted Answer

At 2W per module, we recommend a maximum of 15 modules per 12 V series run (30 W total) to keep voltage drop within acceptable limits. For larger installations, use multiple parallel circuits from the power supply. A 20-module run (40 W) is possible with short wire runs and adequately sized cable but is not recommended as standard practice.

Question 3

What size power supply do I need?

Accepted Answer

Multiply the module count by 2 W, then divide by 0.8. For 20 modules: 40 W ÷ 0.8 = 50 W minimum. A 60 W or 100 W 12 V constant voltage driver provides safe headroom. For large installations using multiple runs, use a single driver sized to cover the total load with 25% headroom.

Question 4

What is the 45° × 15° beam angle best suited for?

Accepted Answer

The asymmetric 45° × 15° beam is purpose-built for halo-lit reverse channel letters and reverse-lit fascia panels, where light is directed from the module toward the wall or backing surface behind the sign. It produces a defined, controlled halo glow at high output — the signature effect of premium exterior retail signage.

Question 5

Can I use the GL 4035 for front-lit channel letters?

Accepted Answer

No — the GL 4035 is not recommended for front-lit letters. Its 45° × 15° beam is for directing light onto a backing surface, not for backfilling a sign face. For front-lit applications, the GL K8 PRO (170°, 1.2W, IP68) is the correct PRO-range product.

Question 6

Is IP65 sufficient for outdoor halo signage?

Accepted Answer

IP65 provides protection against water jets and heavy rain, which is suitable for the vast majority of UK outdoor signage including large exposed halo letters. For ground-level signs at persistent flood risk or coastal salt-spray locations, the GL K2 PRO (IP68) provides higher protection at lower wattage.

Question 7

Does the GL 4035 carry a warranty?

Accepted Answer

Yes — 3 years from date of purchase when installed in accordance with Glowfy's technical guidelines and powered from a compliant 12 V DC constant voltage driver.

Question 8

How does the GL 4035 compare to the GL 4030?

Accepted Answer

The GL 4035 produces 190 lm at 2W versus 145 lm at 1.5W for the GL 4030. The body is slightly larger (50 × 30 mm vs 40 × 30 mm) to accommodate the higher-power chip. Both use the same 45° × 15° beam, the same 87 mm pitch and the same IP65 rating. Choose the 4035 for large-format or high-brightness halo requirements; choose the 4030 for standard-size letters where the extra output is not needed.

Quantity	Unit Price	Tier
1–19← your tier	£13.50	Retail
20–99	£11.99	Trade
100–499	£10.99	Pro
500+	£9.49	Wholesale

LED Chip	4035
LED Type	SMD 3030
Input Voltage	DC 12V
Power Consumption	2W per module
Luminous Flux	190 lm per module
Beam Angle	45° × 15°
Colour Temperature	Warm White 3000K
IP Rating	IP65
Module Size	50 × 30 mm
Module Pitch	87 mm
Mounting Hole	Ø3.5 mm
Wire	22AWG
Warranty	3 Years
Certifications	CE, RoHS

Glowfy PRO LED Module

High-Output 45° Beam LED Module for Professional Signage

Key Features

Technical Specifications

Applications

Package Contents

Built for professionals

UK Stock

Up to 5-Year Warranty

Sign Maker Approved

Trade Support

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