Experimental (gray traces, noisy) and simulated (black traces, noiseless) photocurrents measured at −40 mV in two different dark-adapted bass single cones. Data in A and B were measured in the same photoreceptor. Flash intensities tested were 174 and 1,747 VP* in A and 17,743 VP* in B. C and D were measured in the same cell. Flash intensities tested were 173 and 808 VP* in C and 7,720 VP* in D. The values of the parameters used to compute the simulated data are listed in Table 3. At intensities above amplitude saturation (B and D), simulations fit experimental data only if the VP* inactivation rate, $γmax,$ was slower than for dim light responses (Table 3). The simulations illustrated in red were obtained when $γmax$ was kept at the same value used to fit the dim light responses.