LED EvoluChem

LED Light Sources:

The EvoluChem™ LED spotlights are designed specifically for photo-catalytic chemistry applications. They fit the photoredox box and they are designed to irradiate all samples with maximum efficiency. The LED chips are selected for specific wavelengths 365 nm, 380 nm, 405 nm, 425 nm, 450 nm, 475 nm, 525 nm, 650 nm, 740nm, 6200K white.

General Specifications

  • Power Consumption 18W or 30W Max
  • Input Voltage 100-240 VAC
  • Beam Angle 25°
  • Wavelength Options 365 nm, 380 nm, 405 nm, 450 mm, 475 nm, 525 nm, 650 nm, 740 nm, 6200K white LED LG, EPILED, Cree XPE or XTE (9X)

EvoluChem LED Light Options

Product Name Wavelength LED Relative Irradiance* Part Number
 365PF 365 nm LG/CREE 9 mW/cm2 HCK1012-01-011
 380PF 380 nm LG 8 mW/cm2 HCK1012-01-013
 405PF 405 nm LG 28 mW/cm2 HCK1012-01-010
 425PF 425 nm EPILED 33 mW/cm2 HCK1012-01-012
 450PF 450 nm CREE XPE 34 mW/cm2 HCK1012-01-002
 475PF 475 nm CREE XPE 23 mW/cm2 HCK1012-01-003
 525PF 525 nm CREE XPE 10 mW/cm2 HCK1012-01-004
 650PF 650 nm EPILED 20 mW/cm2 HCK1012-01-014
 740PF 740 nm EPILED 20 mW/cm2 HCK1012-01-015
 6200PF Cold White CREE XTE 29 mW/cm2 HCK1012-01-005
 450DX 450 nm CREE XPE 55 mW/cm2 HCK1012-01-008
 365DX 365 nm LG 25 mW/cm2 HCK1012-01-006

*Average relative irradiance is measured in the photoredox box.

 

The Advantage of A Focused Light Beam

Light Sources Electric
Power (W)
Total Irradiance*
(mW/cm2)
EvoluChem 450DX 30W 55
EvoluChem 450PF 18W 34
Kessil 150N 34W 22

EvoluChem™ LEDs are designed to maximize the amount of light directed towards the sample. As shown at left, the EvoluChem 450PF LED (18W) delivers better light efficiency than the Kessil 150N (34W) due in part to its 25° light beam angle.

In fact, with a more focused beam, Evoluchem LEDs consistently deliver more irradiance than other brands… even though our LEDs require less power.

EvoluChem 450 nm vs Kessil Royal Blue

 

Experimental Details:
In duplicate in a 4-ml vial equipped with a teflon septa and 2×7 mm stir bar, were weighed 4-bromoacetophenone (4.95 mg, 25 µmol) and potassium benzyltrifluoroborate (4.50 mg, 25 µmol, 1 equiv.). To this vial was added a 1.0 ml solution in DMA containing NiCl2-dme (1.1 mg, 5 µmol, 20 mol %), dtbbpy (1.3 mg, 5 µmol, 20 mol %) and Ir(dF-CF3-ppy)2(dtbpy) (1.12 mg, 1 µmol, 4 mol %) followed by addition of 2,6-lutidine (17.5 µl, 150 µmol, 6 equiv.) . The solution was sparged with nitrogen via submerged needle for 5 minutes and vial was placed in EvoluChem photoreactor with blue Kessil 34W LED or with a EvoluChem LED 18W 450-455 nm. Reaction time course was monitored at 0, 5, 15, 45, 120, 240, and 360 minutes.

Molander_Lutidine

 

18W_Kessil_Graph

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