Larson Electronics Releases Explosion Proof Blasting Gun, Green LED, 4 Watts, Rechargeable – 10/30/2021. Larson Electronics Releases Explosion Proof Rotary Potentiometer, 2K OHM Resistance, 30V DC – 10/30/2021. Larson Electronics Releases 40W Clean Room Fail Safe LED, 5,200 Lumens, 2x4 Lay-In Flange Mount – 10/29/2021.