The double density is perfect

The density is good and the strip is surprisingly bright at 12 volts - it will run off of 9 volts if you need it dimmer

I used these LED's (Premium High Density 3528 Warm White LED Light Strip - 600 LEDs, 3000K, 164 Lumens & 2.6 Watts per Foot, 12V DC, Adhesive Backed) for a kitchen cabinet lighting project.

UL-Listed Warm White High Density SMD3528

Purchased: Warm White High Density (UL) (IP67) - I probably should have looked more carefully at the pictures, but to call these IP67 is just stupid... especially if you cut them.

In lieu of the LED density, the luminance of these strips is better than expected.

The single density would not have been bright enough to replace the florescent lights

I got these high density because the lower density were being delayed in shipment.

I ordered the HitLights double density warm white light strip to convert my under cabinet fluorescent fixtures to LED fixtures

Double density is much better than regular for under cabinet

Double density makes it twice as bright and it being LED means it emits little heat

Worked ok but are not high density as stated, not bright enough as a work light over your kitchen counter, no need for a dimmer