All our LEDs and fluorescent tubes have built in reflectors. This removes the need and use of reflectors built into the system in which you are installing them, and gives you about 35-50% higher output because the light that would normally go away from you is instead reflected back towards you before it even leaves the device. Because of this, you MUST install the tubes so you can see the label of the light bulb on every bulb, and you must install the LEDs so you can see the LEDs themselves.
It is difficult to see the reflectors in the LEDs, but they are there. They are a special 120 degree focused reflector behind each individual LED. This forces all the light towards you in a 120 degree angle, which is the same as 1/3 of a circle. This makes them even more intense and is part of the reason they put out so much light.
The fluorescent bulbs have a 180 degree reflector. This means we pour a special reflective material down the length of the lamp which covers half the circle of the lamp, before we add the phosphors. This makes it impossible for any light to shine away from you as it is reflected back towards you before it leaves the lamp.
In this image, you see a normal light bulb on the left, which shines equally in all directions. In a system with reflective material, it will recapture some of this energy, but most of it is lost to wave cancellation. To the right you the Rejuvenescence bulb. The thick blue line represents the reflector built into the lamp (in reality, it is a thin, white coating). This reflects the light before it passes through the glass and forces it back towards you. The parabola design guarantees it is all focused on you, and that is how we can get up to 50% more intensity out of the same bulb.
All of our systems use built in reflectors of one kind or another. They add a little bit to the price of the product, but they deliver many times more in performance, so it's an easy choice when you want maximum results.