30-day money-back guarantee. Discreet shipping. Built for Dr. Joel Kaplan pump systems.
Red light active
30+ Years TrustedMen's performance systems since 1991
100,000+ Men ServedUsed by men across the country
Discreet ShippingPlain, private packaging
30-Day GuaranteeTry it without the risk
Choose your protocol
Choose the setup that matches what you own.
Already have a pump? Add only the wrap. Need the full system? Choose your Auto G.R.O. size and add both products to cart together.
Starter Package: STIMULATE + Auto G.R.O.
Maximize Size and Rigidity / Accelerated Recovery
$398Now Only $359
✓STIMULATE red light therapy wrap
✓Auto G.R.O. Starter Pump System
✓30-day money-back guarantee
✓Choose you pump size below
Most popular
Best full protocol
Plus Package: STIMULATE + Auto G.R.O Whopper
Maximize Size and Rigidity / Accelerated Recovery / Faster Length
$484Now Only $436
✓Everything in the Starter Package, plus...
✓Dual Cylinder Protocol for Maximum Length
✓Choose you pump size below
Already have a pump?
STIMULATE Red Light Wrap
Accelerated Recovery + Blood-Flow
$199Now Only $179
✓STIMULATE red light therapy wrap
✓170 therapeutic LEDs
✓655nm red + 880nm near-infrared light
✓USB-C cable and power bank
✓30-day money-back guarantee
How to choose your pump cylinder size
This sizing is for the Auto G.R.O. pump cylinder, not the STIMULATE red light wrap. STIMULATE is one size and is added automatically with the package.
1Wrap a soft tape around the thickest part of your erect shaft.
2Note the girth measurement where the tape overlaps.
3Match that measurement to the pump cylinder chart below.
Size
Diameter
Best for
Small
1.75"
Girth under 4.5"
Medium
2.00"
Girth 4.5" - 5.5"
Large
2.25"
Girth 5.5" - 6"
X-Large
2.50"
Girth 6"+
Between sizes? Choose the larger pump cylinder for the best seal and comfort. Size exchange is available within 30 days.
Results You Can See
Customer Favorite Pump Upgrade
★★★★★
"First off, the heat from the red light wrap feels incredible... but what really surprised me was how fast it kicks in. Normally it takes me about 10 minutes to fully fill the pump tube. With red light I’m filling the tube in 2 minutes."
James R.
★★★★★
"My husband has been pumping for years, but last night he was just so much bigger and harder than usual. I asked him if he took a drug like viagra. He said, 'Nope, but I started pumping with red light last week.' Holy crap, I didn't know light can do that!"
Masha T.
★★★★★
"When I use the red light I fill the pump tube faster.Within a minute or two, I’m already pressed up against the sides.
The heat from the wrap feels really good! It relaxes everything and kind of preps you before you even start. The veins pop more, and everything looks fuller, like there’s just more blood getting in. You can literally see it working."
Cole S.
Discovered by NASA. Adopted by the U.S. Navy.
56%
Increase in Vasodilation
Red LED light produced up to 56.8% vasodilation at optimal energy density, directly increasing blood flow to treated tissue.
(Annals of Thoracic Surgery, 2012)
50%
Faster Tissue Recovery
NASA-sponsored red and near-infrared LEDs delivered 50% faster healing and 40% greater improvement in musculoskeletal injuries for U.S. Navy crews vs. controls.
(NASA / Medical College of Wisconsin, 2001)
50%
Nitric Oxide Spike
670nm red light increased nitric oxide precursor content by 50% in irradiated tissue - with blood flow remaining elevated for 30 minutes after the session ended.
(Frontiers in Physiology, 2022)
How it works
Your regular pump session, upgraded in 3 steps.
01
Attach the wrap
Position STIMULATE around the cylinder before your session begins.
02
Choose intensity and timer
Select the mode and session duration that fit your protocol.
03
Pump while light is active
Red and near-infrared LEDs work during the session without adding another step.
The Science Behind Red Light
Why Stimulate Accelerates Size and Firmness
The light protocol
Two wavelengths. One simple upgrade.
STIMULATE uses red and near-infrared LEDs to support the same performance goals men are already pursuing with pump therapy: blood flow, recovery, and session consistency.
The wrap is built to add that light exposure during your existing session instead of asking you to create a separate routine.
655nmRed light wavelength
880nmNear-infrared wavelength
170Therapeutic LEDs
3Intensity modes
Questions
Common questions before you start.
Does STIMULATE replace pumping?
No. It is designed to work with your pump session by adding red and near-infrared light while you follow your normal routine.
Which pumps does it work with?
It is built for Dr. Joel Kaplan pump cylinders and can be positioned around compatible air-pump cylinders.
Does it add time to the routine?
No. The goal is to use the light while you are already pumping.
What comes with the wrap?
The wrap package includes the STIMULATE red light therapy wrap, USB-C cable, portable power bank, and instructions.
Start the upgraded protocol
Add red light to your next pump session.
Choose the STIMULATE package that fits your current setup and make the routine easier to repeat.Shop the three options