Phytolite - Gualala Robotics - Osram - Philips - Light Interaction - Elektrox - Legrand - Ostalo - Nutriculture - Lumatek - Lumen-King - Air cooled reflectors
The advantage of air-cooled reflectors is that the bulb can be cooled. This extends the life of the bulb. This type of reflectors are suitable for HPS and MH bulbs.