PR
MICROPRISMATIC DIFFUSER
Asymmetric
Microprism
Measured, PR036-15B-840-PR-D (taken as BLA2-15B-840-PR-D, to confirm)
Commercial · Linear
UGR under 19 commeRcial Linear Lighting
UGR<19 Linear
- 15W to 82W
- 1,536lm to 9,512lm
- 96lm/W (A length), 116lm/W (B to G)
- IP20
- 5 Years warranty
Order code BLA2-30B-840-PR-D-D1-SM-BL
3,480 lm
CRI>80, 4000K. MICROPRISMATIC DIFFUSER optic. BL Black (RAL 9005).
No lumen is published for that combination.
30W nominal. 1,430 × 73 × 85 mm. CE, RoHS.
- 116 lm/W
The Blackwell 2 Series Direct-Only UGR<19 is a high-performance commercial linear LED luminaire designed to deliver low glare, LG7-compliant lighting for demanding interior environments.
Featuring a micro-prismatic diffuser for enhanced visual comfort, with an optional opal variant, it provides precise optical control to suit a range of applications.
Manufactured from extruded aluminium with a refined 73mm x 85mm profile, it offers a clean architectural aesthetic across recessed, surface, and suspended installations.
With DALI-2 dimming, tuneable white (2700K-5700K), and custom length capability, the PR036 is a flexible, specification-grade solution for contemporary lighting design.
Its modular design supports continuous runs and complex layouts, including combined wall and ceiling configurations. Available in a choice of finishes and flex colours, the luminaire integrates seamlessly into diverse interior schemes while maintaining a professional, high-specification appearance.
| Series code | BLA2 |
|---|---|
| Lengths | A 1,150mm to G 2,970mm, five powers in each length |
| Nominal power | 15W to 82W |
| Efficacy | 96lm/W (A length), 116lm/W (B to G) @ CRI>80, 4000K CCT (micro-prism) |
| Lumen output | 1,536lm to 9,512lm |
| Lumen maintenance | L70B10 ≥75,000 hours |
| Certification | CE, RoHS |
| Warranty | 5 Years |
Sheet lumen at CRI>80, 4000K, with no modification: 16A 1,536 lm, 20A 1,920 lm, 24A 2,304 lm, 28A 2,688 lm, 32A 3,072 lm, 15B 1,740 lm, 20B 2,320 lm, 25B 2,900 lm, 30B 3,480 lm, 40B 4,640 lm, 24C 2,784 lm, 30C 3,480 lm, 36C 4,176 lm, 42C 4,872 lm, 48C 5,568 lm, 28D 3,248 lm, 35D 4,060 lm, 42D 4,872 lm, 48D 5,568 lm, 56D 6,496 lm, 32E 3,712 lm, 40E 4,640 lm, 48E 5,568 lm, 56E 6,496 lm, 64E 7,424 lm, 36F 4,176 lm, 45F 5,220 lm, 54F 6,264 lm, 62F 7,192 lm, 72F 8,352 lm, 42G 4,872 lm, 52G 6,032 lm, 62G 7,192 lm, 72G 8,352 lm, 82G 9,512 lm. Another CRI, or a modification, still prints the order code and leaves the lumen blank. 63 measured files give 95.8 to 112.3 lm/W; the measured figure for the chosen optic shows under the code.
DOWNLOADS
Questions for Adam list what the sheet and the measured files do not settle yet.
LIGHT DISTRIBUTION OPTIONS
OP
OPAL DIFFUSER
Asymmetric
Microprism
Measured, PR036-16A-840-OP-D (taken as BLA2-16A-840-OP-D, to confirm)
Polar: solid green C0–C180, dashed blue C90–C270, dotted amber the plane through the brightest direction when it lies between them; rings at 25% steps of the peak. Isolux: the footprint on the floor with the fitting aimed straight down, contours at 50%, 25% and 10% of the brightest point, grid in mounting heights (H). Both are drawn from the first measured file for that optic.
DESIGN FEATURES
UGR<19 lights designed for purpose
Micro-prismatic diffuser delivers UGR<19 performance, ideal for offices, education, and LG7-compliant environments requiring controlled glare. Optional opal diffuser offers a softer visual effect where glare requirements are less stringent. Recessed, surface, or suspended mounting options provide flexibility across a wide range of ceiling types and project conditions. Standard and bespoke lengths enable continuous lines of light tailored to architectural layouts and branding requirements. DALI-2, 1-10V and switch dimming options support seamless integration into modern lighting control systems. Tuneable white (2700K-5700K) allows adaptable lighting schemes aligned with user needs and occupancy patterns. Choice of finishes and flex colours ensures visual consistency with interior design schemes. Emergency options, including 3-hour and DALI self-test, support compliance with safety and building regulations.
TYPICAL APPLICATIONS
Offices
We offer a selection of office lighting, LED Office Lighting includes a choice of LED ceiling lights, ceiling panel lights, linear fittings and downlights.
Airport Aprons
We supply specialist lighting for airport aprons which meets or exceeds all CAA airport apron lighting standards including lux levels, glare and ULR.
Education
For schools, colleges and universities, we offer a vast range of efficient LED classroom lighting solutions that will deliver long term cost savings.
Retail
Based in the UK, with global distribution, we offer a superb choice of stylish and efficient LED lights for shops, shopping malls and shopping centres.
Supermarket
For shops, supermarkets and shopping malls, we offer energy efficient LED lighting solutions for sales floors that minimise energy consumption.
- Meeting Rooms
- Corridors
- Receptions
- Changing Rooms
GALLERY
Showing 1-3 of 3
SPECIFICATIONS
| Light Emmission CCT | Direct |
|---|---|
| CRI | ≥80 |
| SDCM | <3 |
| Diffusers | Micro-prism (PR, UGR<19) or opal (OP) |
| Typical UGR | <19 |
| System Power Factor | >0.9 |
|---|---|
| Input Voltage | 220-240VAC |
| Input Frequency | 50-60Hz |
| Insulation Class | Class I |
| IP Rating | IP20 |
|---|
| Product Dimensions: LxWxH (mm) | 1,150 to 2,970 (by length code) x 73 x 85 |
|---|
| Dimming Options | 1-10V, DALI |
|---|
| Mounting Styles | Surface mounted, cable suspended |
|---|
| Mounting Styles | Surface mounted, cable suspended |
|---|---|
| Available Product Colours | White (RAL 9016M), Black (RAL 9005), Silver (RAL 9006), custom |
| 16A | 16W nominal. 1,150 × 73 × 85 mm. CE, RoHS. |
|---|---|
| 20A | 20W nominal. 1,150 × 73 × 85 mm. CE, RoHS. |
| 24A | 24W nominal. 1,150 × 73 × 85 mm. CE, RoHS. |
| 28A | 28W nominal. 1,150 × 73 × 85 mm. CE, RoHS. |
| 32A | 32W nominal. 1,150 × 73 × 85 mm. CE, RoHS. |
| 15B | 15W nominal. 1,430 × 73 × 85 mm. CE, RoHS. |
| 20B | 20W nominal. 1,430 × 73 × 85 mm. CE, RoHS. |
| 25B | 25W nominal. 1,430 × 73 × 85 mm. CE, RoHS. |
| 30B | 30W nominal. 1,430 × 73 × 85 mm. CE, RoHS. |
| 40B | 40W nominal. 1,430 × 73 × 85 mm. CE, RoHS. |
| 24C | 24W nominal. 1,710 × 73 × 85 mm. CE, RoHS. |
| 30C | 30W nominal. 1,710 × 73 × 85 mm. CE, RoHS. |
| 36C | 36W nominal. 1,710 × 73 × 85 mm. CE, RoHS. |
| 42C | 42W nominal. 1,710 × 73 × 85 mm. CE, RoHS. |
| 48C | 48W nominal. 1,710 × 73 × 85 mm. CE, RoHS. |
| 28D | 28W nominal. 1,990 × 73 × 85 mm. CE, RoHS. |
| 35D | 35W nominal. 1,990 × 73 × 85 mm. CE, RoHS. |
| 42D | 42W nominal. 1,990 × 73 × 85 mm. CE, RoHS. |
| 48D | 48W nominal. 1,990 × 73 × 85 mm. CE, RoHS. |
| 56D | 56W nominal. 1,990 × 73 × 85 mm. CE, RoHS. |
| 32E | 32W nominal. 2,270 × 73 × 85 mm. CE, RoHS. |
| 40E | 40W nominal. 2,270 × 73 × 85 mm. CE, RoHS. |
| 48E | 48W nominal. 2,270 × 73 × 85 mm. CE, RoHS. |
| 56E | 56W nominal. 2,270 × 73 × 85 mm. CE, RoHS. |
| 64E | 64W nominal. 2,270 × 73 × 85 mm. CE, RoHS. |
| 36F | 36W nominal. 2,550 × 73 × 85 mm. CE, RoHS. |
| 45F | 45W nominal. 2,550 × 73 × 85 mm. CE, RoHS. |
| 54F | 54W nominal. 2,550 × 73 × 85 mm. CE, RoHS. |
| 62F | 62W nominal. 2,550 × 73 × 85 mm. CE, RoHS. |
| 72F | 72W nominal. 2,550 × 73 × 85 mm. CE, RoHS. |
| 42G | 42W nominal. 2,970 × 73 × 85 mm. CE, RoHS. |
| 52G | 52W nominal. 2,970 × 73 × 85 mm. CE, RoHS. |
| 62G | 62W nominal. 2,970 × 73 × 85 mm. CE, RoHS. |
| 72G | 72W nominal. 2,970 × 73 × 85 mm. CE, RoHS. |
| 82G | 82W nominal. 2,970 × 73 × 85 mm. CE, RoHS. |
The power code is the watts and the length letter: 42B is 42W in the 1,430mm length.
Lumen figures are the sheet's efficacy for the length multiplied by the power, for the micro-prism diffuser; they match both ends of each length's printed range.
Electrical parameters are for D1 drivers unless otherwise stated.
If more than one modification is required, separate each modification with a hyphen at the end of the product code.
Select a compatible driver for occupancy sensors with dimming.
