---
title: UVA-340+ and UVB-313EL+ Lamps for QUV Testers Now Available for Improved High-Irradiance Testing
description: High Output Lamps for Q-LAB QUV Testers Now Available for Improved High-Irradiance Testing
---

[Expert Advice ](https://www.thermoline.com.au/blog)

# [UVA-340+ and UVB-313EL+ Lamps for QUV Testers Now Available for Improved High-Irradiance Testing](https://www.thermoline.com.au/blog/news/uva340-and-uvb313el-lamps-for-quv-testers-now-available-for-improved-highirradiance-testing)

 Written by [Thermoline Staff](https://www.thermoline.com.au/blog/author/thermoline-staff) | Jul 28, 2019 2:00:00 PM

** **

**What is the Improvement?**

The new UVA-340+ and UVB-313EL+ lamps have higher outputs than standard UVA-340 and UVB-313EL lamps. The new lamps have extended lifetime warranties of 1500 hours at high irradiance (1.55 W/m2 /nm) and 750 hours at maximum irradiance (1.70 W/m2 /nm). The standard UVA-340 and UVB-313EL lamps will continue to be available. They will continue to be warranted for 8000 hours at typical irradiance levels. They are not warranted for high or maximum irradiance values.

** **

**Why did Q-Lab make this improvement?**

Users requested lamps with guaranteed longer life when running at high irradiance levels.

**What are you required to do?**

● The spectral distribution of UVA-340+ lamps is identical to UVA-340 lamps.

> All CR10 calibration radiometers and UC1 handheld displays with UC10/UV Smart Sensors can properly calibrate both UVA-340 and UVA-340+ lamps.

> Users with irradiance-controlled testers ([QUV/se](https://www.thermoline.com.au/category/uv-weathering-testers), QUV/spray, QUV/spray/RP) should use the UVA-340+ lamps, and their results should not change.

> Users with QUV/basic testers may get more severe results using UVA-340+ lamps. A limited supply of UVA-340 lamps still exists for these Users.

● The spectral distribution of UVB-313EL+ lamps is slightly different from UVB-313EL lamps.

> CR10 calibration radiometers cannot be used to calibrate UVB-313EL+ lamps properly. CR10 users must upgrade to the Universal Calibrator system to use UVB-313EL+ lamps.

> UC1 Handheld Display software must be updated to version 1.040 or higher so that the option to calibrate “UVB -313EL+” lamps is available. This update is required for accurate calibration of UVB-313EL+ lamps.

> Users with irradiance-controlled testers (QUV/se, QUV/spray, QUV/spray/RP) testing at high irradiance (1.55 W/m2/nm) should use UVB-313EL+ lamps.

> Users with irradiance-controlled testers testing at typical irradiance (0.71 W/m2/nm) and Users with QUV/basic testers should continue to use UVB-313EL lamps.

Users with these testers may get more severe results using UVB-313EL+ lamps. A longer-term supply of UVB-313EL lamps still exists for these Users.

[View full post](https://www.thermoline.com.au/blog/news/uva340-and-uvb313el-lamps-for-quv-testers-now-available-for-improved-highirradiance-testing)

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